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Arabic numerals

A Return to Simplicity: Five Watches With Arabic Numerals

From field GMTs to vintage railway watches and the reversible Reverso, these five recommendations show how Arabic numerals suit very different designs.

By WatchRanker Team 5 min read
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For a dial you can read at a glance, Arabic numerals are hard to beat. They appear on watches as different as a practical GMT, a modern field watch, a vintage railway piece, an aviation-style tool watch and the reversible Jaeger-LeCoultre Reverso. These five recommendations come from Henry Black’s August 25, 2025 Fratello article; they are one writer’s selections, not the results of a comparative test.

Five watches with Arabic numerals, compared

Watch Category and numeral style Details reported in Black’s 2025 article Best fit
Seiko 5 Sports GMT “Field” SSK023 Field-style GMT; Arabic hour numerals and a 13–24-hour scale 39.4 mm case, 13.6 mm thick, 47.9 mm lug-to-lug; 4R34 GMT caliber, approximately 41-hour power reserve, 100 m water resistance Someone wanting a practical everyday watch with a second time-zone display
Formex Field Automatic Contemporary field watch; Art Deco-inspired numerals 40 mm Grade 2 titanium case, 46.6 mm lug-to-lug, 10.6 mm thick; Sellita SW200, date, 150 m water resistance Someone drawn to a modern field-watch layout and several dial colors
Universal Genève FS Vintage Italian railway watch; black numerals on white dials Three variants are described: MK I at 34 mm; MK II and MK III at 36 mm with cushion cases. MK I and MK II are described with enamel dials; caliber 64 and subsidiary seconds are noted. Someone interested in vintage railway watches and their history
IWC Mark series Aviation-watch family centered on legibility The article discusses the Mark XII, XV, XVII, XVIII and modern Mark XX. Reported older-model details include a 36 mm Mark XII with a Jaeger-LeCoultre caliber and a 38 mm Mark XV with a modified ETA 2892-A2. Someone looking for a legible aviation-style watch and willing to compare specific references
Jaeger-LeCoultre Reverso Reversible dress/sport design; Arabic numerals appear on some versions The recommendation is for a smaller mechanical example with Arabic numerals; no specific reference or dimensions are named. Someone who wants a distinctive reversible case and is open to pre-owned examples

The figures and model descriptions in the table are reported by Black’s 2025 article, not independently verified current specifications. Model details can vary by reference, production year and condition; confirm the exact watch before buying. The article does not establish current prices or availability.

1. Seiko 5 Sports GMT “Field” SSK023

The SSK023 combines a field-watch-style black dial with a GMT display. Arabic hour numerals share the face with a 13–24-hour scale, while the fixed stainless-steel bezel carries a 24-hour scale. A date adds another everyday function without changing the dial’s basic tool-watch character.

Black reports a 39.4 mm case, 13.6 mm thickness and 47.9 mm lug-to-lug length, along with 20 mm lug spacing. The article identifies the movement as Seiko’s 4R34 GMT caliber, with an approximately 41-hour power reserve and 100 m water resistance. Those are article-reported specifications rather than a current manufacturer verification.

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Among these five, this is the most direct pick for someone who wants Arabic numerals and a second-time-zone display in a practical daily-watch format. Black also notes a visual connection to his earlier Seiko 5 SNZG11; that is his design comparison, not a claim that the models are equivalent.

2. Formex Field Automatic

The Field Automatic brings a more contemporary treatment to the field-watch idea. The article describes a Grade 2 titanium case hardened to 900 Vickers, a screw-down crown and 150 m water resistance. Its reported dimensions are 40 mm across, 46.6 mm lug-to-lug and 10.6 mm thick. Black names a Sellita SW200 movement and a date at six o’clock.

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The dial colors discussed are salmon, aquamarine and charcoal. The numerals draw on Art Deco styling, including a cut-off nine. Black says the charcoal version has white numerals and stronger lume, and identifies it as his favorite; both the lume comparison and favorite are his observations and preference.

This is the option for a reader who likes familiar field-watch legibility but wants a distinct case material and a more design-led dial. The listed specifications describe the version in the 2025 article; check the exact current configuration for any particular listing.

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3. Universal Genève FS: a railway-watch history

FS stands for Ferrovie dello Stato, or Italian State Railway. Black describes the watches as made for Italian railway workers from the early-to-mid-1960s through the mid-1970s. Their white dials, black Arabic numerals and subsidiary seconds create a restrained layout suited to reading time quickly.

The article distinguishes three variants: MK I with a 34 mm case, and MK II and MK III with 36 mm cushion cases. It says MK I and MK II have enamel dials and identifies Universal Genève caliber 64. These details are useful starting points for identifying a variant, but vintage examples should be checked by their specific reference and condition.

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Black estimates that about 80,000 FS watches were made. The article provides no underlying record or method for that number, so it should be treated as his reported estimate rather than an established production total.

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4. IWC Mark: a legibility-focused family

The Mark line offers a different route to the same practical appeal: an aviation-watch family built around legibility. Black discusses the modern Mark XX as well as older Mark XV, XII, XVII and XVIII watches, but the family name alone does not establish the specification of a particular watch.

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For the older references he describes, the Mark XV is 38 mm and uses a modified ETA 2892-A2; the Mark XII is 36 mm and uses a Jaeger-LeCoultre caliber. He also mentions an iron inner cage for magnetic resistance and 6-bar water resistance for older models. These are details reported in the article, and they should not be applied to every Mark reference: verify the exact model and condition, especially when evaluating a pre-owned listing.

Black’s favorite is the Mark XV. He also characterizes used Mark XVII and XVIII watches as bargains, but that is an editorial opinion, not a current market-price comparison.

5. Jaeger-LeCoultre Reverso: numerals in a reversible case

The Reverso is the most distinctive design in this group. Its case turns over to shield the watch face, a concept the article traces to polo. Arabic numerals are not present on every Reverso, so the dial must be checked rather than inferred from the model family.

Black’s recommendation is to look for a smaller mechanical Reverso with Arabic numerals, without naming a particular reference. He favors a pre-owned example as a personal buying preference; the article does not compare current prices or identify a specific model to seek.

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How to choose among them

  • For a GMT: The Seiko SSK023 is the only recommendation here with a GMT complication and a 24-hour bezel.
  • For a modern field-watch look: Compare the Seiko’s GMT-oriented layout with the Formex’s Art Deco-inspired numerals and titanium case.
  • For vintage character: The Universal Genève FS is the railway-watch choice; confirm the variant, dial and condition carefully.
  • For an aviation-watch family: Look at a specific IWC Mark reference, not just the Mark name, because the details differ across models and generations.
  • For a reversible case: Search Reverso references individually and verify that the specific dial actually has Arabic numerals.

Numeral style is only one part of legibility. Also consider the spacing and contrast of the markers, the hands, any added scales or date display, and whether the case dimensions suit your wrist. For older or pre-owned watches, reference accuracy and condition matter as much as the family name.

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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