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The SERICA Ref. 6190 TDM: A Thai Twist on the California Dial

SERICA’s 6190 TDM pairs Thai numerals with the Roman numerals of a California-style dial in a 100-piece Thailand-market edition of its Field Chronometer.
Estimate3–4 min Catalogued SpecialistWatchRanker Team
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The SERICA Ref. 6190 TDM is a 100-piece, Thailand-market version of the brand’s 6190 Field Chronometer. Its defining feature is a California-style dial with Roman numerals above and Thai numerals below—a combination SERICA describes as a first. The watch pairs that distinctive layout with a 37.7 mm stainless-steel case, a COSC-certified automatic movement and 200 m water resistance.

What makes the 6190 TDM’s dial different?

A conventional California-style dial places Roman numerals on its upper half and Arabic numerals on its lower half. On the TDM, Thai numerals take the place of those lower Arabic markers, while the Roman numerals remain above. The result keeps the familiar split layout but gives its lower half a distinctly Thai character. Monochrome Watches describes the format and the substitution; SERICA calls the Thai-and-Roman combination a first for the design, a claim that has not been independently established as a historical first.

The dial is black and polished, and SERICA describes it as enameled. The Thai and Roman indexes are highly domed and use Super-LumiNova C3. A double-domed sapphire crystal with an inner anti-reflective coating covers the dial. These details give the watch more to distinguish it than numeral language alone, while keeping the central idea immediately readable: two numeral systems share one dial.

How the watch is specified

SERICA’s official product listing gives the following specifications for Ref. 6190 TDM:

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#1 Best Overall
Sale
MVMT Field II Men's Watch - Everyday Wear for Him - 41mm
  • Born for the Bold. Built for the Wild. - Consider the Field the off-road vehicle of our watches. Its 10 ATM water-ready case can handle rain, sweat and swims. Its bold numbered dial makes for swift reading while you're on the go. And it’s available in a nylon textile strap for the necessary balance of lightweight and durability. Have a field day with this one.
  • Classic 3 Hand + Date MIYOTA 2415. Some things never go out of style. Our 3 hand watches blend precise Japanese quartz timekeeping with a California clean aesthetic so you can move in the moment distraction free. This design also features a date window to keep you up to speed with your monthly calendar.
  • Durable and Water Resistant: Water Resistant up to 10 ATM/100 Meters. For short dives, swim and surf.
  • Designed in the USA - Premium on-trend Watches and accessories, designed at our headquarters in Los Angeles.
  • Caring for Your Timepiece: Your MVMT watch has been crafted with meticulous attention to quality, function, and detail. We recommend a maintenance interval of every 3 to 5 years, along with any necessary battery replacements. Please do not attempt to open the watch yourself.
Feature Published specification
Edition and market 100 pieces; Thai Domestic Market
Case 316L stainless steel
Diameter/opening 37.7 mm
Thickness 10.4 mm, including crystal
Horn-to-horn 46.5 mm
Horn width 20 mm
Water resistance 20 ATM / 200 m
Movement M100 COSC, automatic, 25 jewels
Frequency 28,800 alternations per hour (4 Hz)
Power reserve 42 hours
Dial and markers Black polished dial, described by SERICA as enameled; Thai and Roman numerals with Super-LumiNova C3
Crystal Double-domed sapphire with inner anti-reflective coating
Bracelet 316L Bonklip bracelet with signed clasp; small, regular and extra-long sizes

All specifications in the table come from SERICA’s official product page. The stated 200 m water resistance is a published rating; it should not be read as a guarantee that every watch is suitable for every water activity.

What kind of watch is it?

The TDM is a market-specific edition of the 6190 Field Chronometer, not a separate case design. Its appeal rests on the meeting of a familiar California layout and Thai numerals, backed by a compact set of published dimensions and a 200 m rating. The 37.7 mm opening, 10.4 mm thickness and 46.5 mm horn-to-horn measurement are useful for comparing its proportions with other watches; the listed 20 mm horn width is relevant if considering a different strap.

Rank #2
UNDONE Basecamp Cali Black - Automatic Watches for Men, Mens Field Watches
  • DISTINCTIVE CALIFORNIA DIAL DESIGN - The Basecamp Cali stands out with its iconic California dial layout, a design that combines Roman numerals on the upper half and Arabic numerals on the lower half for a look rooted in vintage military and tool-watch heritage. This unique display gives the watch exceptional character while maintaining excellent legibility.
  • VINTAGE CHARACTER WITH MODERN CUSTOMIZATION - Built on the versatile Basecamp platform, the Cali blends old-world aesthetics with contemporary personalization options. Available in multiple configurations such as Green, Black, Bronze, and Ume variants, it allows enthusiasts to enjoy a distinctive vintage-inspired watch tailored to their individual style.
  • RELIABLE AUTOMATIC MECHANICAL PERFORMANCE - Designed for everyday dependability, the Basecamp Cali is powered by an automatic mechanical movement that delivers reliable self-winding performance without relying on batteries. This mechanical foundation reinforces the watch's traditional appeal while ensuring practical daily use.
  • HERITAGE-INSPIRED EVERYDAY WEARABILITY - Combining rugged utility with timeless styling, the Basecamp Cali is designed to transition effortlessly from casual wear to outdoor adventures. Its balanced proportions and highly legible dial make it a versatile companion for both watch collectors and first-time enthusiasts.
  • A MODERN TAKE ON CLASSIC EXPLORATION WATCHES - Drawing inspiration from vintage tool watches while incorporating modern manufacturing and customization capabilities, the Basecamp Cali delivers a unique blend of tradition and innovation. Its distinctive dial design makes it one of the most recognizable models within the Basecamp collection.

The M100 COSC is specified as an automatic movement with 25 jewels, a frequency of 4 Hz and a 42-hour power reserve. Those are the manufacturer’s published movement figures. The Bonklip bracelet is supplied in small, regular and extra-long sizes, so bracelet fit is a practical consideration alongside case measurements.

Availability and price: what is known

SERICA’s editorial page described the TDM as a Thailand-resident-exclusive pre-order, requiring a Thai IP address to order and a physical delivery address in Thailand. It listed late-June 2026 delivery. Those are historical terms: as of October 7, 2026, they do not establish whether the watch is still available, whether the same eligibility rules apply, or what it currently costs. Check SERICA’s editorial page and the live product listing for current information before making a purchase decision.

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Rank #3
Sale
MVMT Field II Men's Watch - Everyday Wear for Him - 41mm
  • Born for the Bold. Built for the Wild. - Consider the Field the off-road vehicle of our watches. Its 10 ATM water-ready case can handle rain, sweat and swims. Its bold numbered dial makes for swift reading while you're on the go. And it’s available in a nylon textile strap for the necessary balance of lightweight and durable. Have a field day with this one.
  • Classic 3 Hand + Date MIYOTA 2415. Some things never go out of style. Our 3 hand watches blend precise Japanese quartz timekeeping with a California clean aesthetic so you can move in the moment distraction free. This design also features a date window to keep you up to speed with your monthly calendar.
  • Durable and Water Resistant: Water Resistant up to 10 ATM/100 Meters. For short dives, swim and surf.
  • Designed in the USA - Premium on-trend Watches and accessories, designed at our headquarters in Los Angeles.
  • Caring for Your Timepiece: Your MVMT watch has been crafted with meticulous attention to quality, function, and detail. We recommend a maintenance interval of every 3 to 5 years, along with any necessary battery replacements. Please do not attempt to open the watch yourself.

Monochrome Watches reported a launch price of EUR 1,190 including taxes in its March 4, 2026 coverage. That is a dated launch figure, not a verified current price.

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What to compare before choosing an alternative

For another watch with a California-style dial—or a field-watch alternative more broadly—compare the details that shape both the experience and the practical fit:

Best Value
Timex Men's Expedition Scout 40mm Watch, Gray Case, Green Fabric Strap
  • Green Dial Design: Green dial with full Arabic numerals pairs with an adjustable strap crafted from green fabric and leather
  • Adjustable Strap: A comfortable band fits securely up to an 8-inch wrist circumference for everyday wear, day in and day out
  • Indiglo Backlight: A push of the button illuminates the dial and luminous hands in the dark, day or night, rain or shine
  • All-Weather Durability: A mineral glass crystal and water resistance to 50 meters keep this field watch ready for daily wear
  • Built to Last: A Timex watch is designed for durability and everyday reliability; every piece reflects our commitment to quality without compromise
Rank #4
Timex Men's Expedition Scout 40mm Watch, Black Dial, Green Fabric Strap
  • Black Dial Design: Black dial with full Arabic numerals pairs with a green fabric slip-thru strap that changes in seconds
  • Adjustable Strap: A comfortable band fits securely up to an 8-inch wrist circumference for everyday wear, day in and day out
  • Indiglo Backlight: A push of the button illuminates the dial and luminous hands in the dark, day or night, rain or shine
  • All-Weather Durability: A mineral glass crystal and water resistance to 50 meters keep this field watch ready for daily wear
  • Built to Last: A Timex watch is designed for durability and everyday reliability; every piece reflects our commitment to quality without compromise
  • Numeral layout: Check which numeral systems appear on each half of the dial and whether the markers are easy for you to read.
  • Case proportions: Compare diameter, thickness and horn-to-horn length rather than relying on diameter alone.
  • Water resistance: Compare the published rating with the activities you have in mind.
  • Movement: Look at certification, frequency and power reserve, and distinguish manufacturer specifications from independently verified performance.
  • Bracelet and strap fit: The TDM’s listed horn width is 20 mm, but width alone does not confirm that a particular strap will fit its attachment.
  • Access and dated pricing: Confirm where a watch can currently be ordered and whether a quoted price is current, regional or merely a launch figure.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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