The original blue Nivada Grenchen F77 is a 37 mm integrated-bracelet sports watch with a textured dial, octagonal bezel and automatic movement. Fratello’s Balazs Ferenczi reviewed a blue no-date example in 2023; the F77 Blue currently listed by Nivada Grenchen is a later, larger 38 mm MK2, so check the generation before comparing fit or buying.
The original F77 Blue: a compact design with a strong dial
Nivada Grenchen describes the F77 as a reissue of its 1977 model. The original blue version pairs a round dial with an octagonal bezel and an integrated steel bracelet. Its defining detail is an embossed blue pattern described as a carbon effect or basketweave: a textured surface that gives the dial more visual depth than a flat blue finish.
Fratello reviewer Balazs Ferenczi chose blue over black because it stood out more, and says handling the watch in Geneva changed his initial opinion. He observed that bright sunlight makes the dial’s three-dimensional effect especially apparent, with raised indexes adding depth. He also found the Super-LumiNova legible at night without being overpoweringly bright. These are his hands-on impressions, not laboratory measurements.
Ferenczi’s verdict after wearing the no-date example for a week was: “I was excited to try on this beauty and see if I still liked it after a week. To that, I can answer a definitive ‘yes.’”
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- BOLD STYLE: The reinvented Machine Chronograph - everything you love about the original, now with a multi-layered dial & moto-inspired design details; inspired by classic American machinery, this Fossil watch commands attention with its bold topring
- CASE & MOVEMENT: 44mm case, 22mm band width, scratch resistant mineral crystal, accurate quartz movement with chronograph analog watch display, imported
- DIAL: One of many among Fossil watches for men, this watch features a round silver stainless steel case with a brushed and textured black dial
- WRIST WATCH BAND: Silver durable stainless steel bracelet; links can be removed for a customized fit
- WATER RESISTANT MEN'S WATCHES: Up to 50m (165ft); wearable for short periods of recreational swimming and showering, but not diving or snorkeling; 5 ATM
Original F77 Blue specifications
| Specification | Original blue F77 |
|---|---|
| Case diameter | 37 mm |
| Lug-to-lug | 45 mm |
| Thickness | 12.6 mm (Nivada Grenchen official specification); Fratello lists 12.65 mm |
| Case material | 316L stainless steel |
| Dial | Blue embossed carbon-pattern / basketweave texture |
| Movement | Automatic SOPROD P024 |
| Power reserve | 38 hours |
| Frequency | 28,800 vibrations per hour (4 Hz) |
| Water resistance | 10 ATM |
| Date | Offered in date and no-date configurations |
| Bracelet | Integrated 316L stainless-steel bracelet |
The figures above are the manufacturer’s specifications for the original model, except for Fratello’s separately reported 12.65 mm thickness. The small thickness difference is a rounding variation, not evidence of a distinct case.
How the original 37 mm differs from the current MK2
The blue watch Nivada Grenchen currently lists is the F77 MK2, not the exact 37 mm model Ferenczi reviewed. The MK2 is slightly larger across the case and lug-to-lug, but thinner. It keeps the SOPROD P024 movement and 38-hour reserve, while changing the dial description, bracelet and some case details.
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- PT5000 Automatic Movement: Powered by the upgraded PT5000 automatic movement for smooth sweeping seconds hand and reliable timekeeping performance. Self-winding mechanics with 41hr power reserve. Manual wind-ready (Turn the crown clockwise 20x if unworn)
- Grade 2 Titanium Case: Lightweight yet durable Grade 2 titanium case with anti-fingerprint and hardened coating delivers premium comfort for daily wear and long-term durability
- Vintage Bubble or Domed Sapphire Crystal: Available with Top Hat bubble sapphire crystal or classic domed sapphire crystal, both featuring internal anti-reflective coating for enhanced clarity
- Professional Diver Features: Equipped with 120-click unidirectional bezel, screw-down crown, genuine working helium escape valve and strong luminous performance for diving and outdoor use
- Multiple Strap Options: Choose between titanium bracelet, stainless steel mesh bracelet or nylon strap to match different wearing styles from vintage military to modern diver aesthetics
| Detail | Original blue F77 | Blue F77 MK2 currently listed |
|---|---|---|
| Case diameter | 37 mm (Nivada Grenchen official original specification) | 38 mm (Nivada Grenchen MK2 listing) |
| Lug-to-lug | 45 mm (Nivada Grenchen official original specification) | 46.2 mm (Nivada Grenchen MK2 listing) |
| Thickness | 12.6 mm official; Fratello lists 12.65 mm | 12.2 mm (Nivada Grenchen MK2 listing) |
| Dial | Blue embossed carbon-pattern / basketweave | Blue tressed dial |
| Movement and reserve | Automatic SOPROD P024; 38 hours | Automatic SOPROD P024; 38 hours |
| Water resistance | 10 ATM | 10 ATM / 100 m |
| Date options | Date or no-date | Date or no-date |
| Listed bracelet or strap options | Integrated steel bracelet | Steel bracelet, canvas Velcro or black rubber |
Nivada Grenchen says the MK2 has more curved lugs, a slimmer profile, a redesigned integrated bracelet intended to improve ergonomics, and drilled lugs for strap changes. It also adds an open balance at 6 o’clock. Those are manufacturer descriptions; they should not be mistaken for the original model’s construction or for independently verified comfort results.
Does the integrated bracelet make it wear larger?
Ferenczi felt the original F77 wore larger than its 45 mm lug-to-lug measurement might suggest. That is his wrist impression, not a universal fit rule: an integrated bracelet’s shape and the way the case and bracelet sit can affect the sense of scale, and wrist shape matters as well. The original’s 37 mm diameter and 45 mm lug-to-lug are useful starting points, but they cannot guarantee how it will fit a particular wrist.
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- Stainless steel case 48mm diameter x 16.8mm thick; Black dial; Luminous hands and hour markers
- Japanese quartz movement, VD53 Caliber; Assembled in Japan; SR920SW battery included; Watch weight: 185 grams
- Stainless steel and black silicone band, 220mm L x 26mm W; Buckle clasp
- Flame Fusion crystal; Push/pull crown; Uni-directional stainless steel bezel with black top bezel ring; Functional Subdials: 60min, 60sec, 24hr; 100 meter water resistant: Suitable for recreational surfing, swimming, snorkeling, sailing and water sports. Not suitable for diving.
- Function meets fashion in this Invicta watch, which features sophisticated design details such as a rotating date calendar and black sunray dial with silver-tone hands and markers.
For the MK2, the listed 38 mm diameter and 46.2 mm lug-to-lug mean it is not dimensionally identical to the original. Try the exact generation and bracelet configuration if fit is a deciding factor; a retailer listing for one version should not be used to infer the feel of the other.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price and availability
Nivada Grenchen’s official MK2 page listed the blue bracelet configuration at US$1,360 when checked on October 8, 2026. Price and stock can change, and the amount applies to that listed MK2 configuration—not necessarily to every variant, market or retailer. The Fratello review’s US$1,150 figure was the original model’s retail price when the review appeared on August 12, 2023; it is historical, not current buying guidance.
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- Smooth Sweep Second Motion: Equipped with a Japan VH31 quartz movement, this watch delivers a continuous sweep second hand motion—mimicking mechanical watch elegance while maintaining quartz accuracy. Perfect for those who appreciate refined timekeeping.
- Scratch-Resistant Sapphire Crystal with AR Coating: The watch face is shielded by a sapphire crystal with 3-layer anti-reflective coating, offering exceptional scratch resistance and glare-free readability in sunlight or under office lighting.
- 100m Water Resistant for Swimming & Daily Activities: With a screw-down crown and case back, this watch is water resistant to 100 meters—suitable for swimming, snorkeling, and daily water exposure. It is not recommended to wear the watch while diving or taking a hot shower.
- BGW9 Blue Luminous Hands & Markers for Low-Light Visibility: Super Luminous BGW9 coating on hands and markers ensures clear readability in dark environments—ideal for evening events, camping, or nighttime driving.
- Aventurine Dial & Versatile Design for Presentation & Styling: The genuine aventurine stone dial shimmers with natural crystalline texture, making it a standout choice for men. Complements both business attire and casual wear—elevates any outfit effortlessly.
Before ordering, confirm the generation (original F77 or MK2), blue dial, date or no-date version, bracelet or strap configuration, shipping region and current availability on the seller’s page.
Quick Recap
Sources
- Nivada Grenchen: F77 Blue MK2 product listing
- Nivada Grenchen: original F77 specifications
- Fratello: “Hands-On: Nivada Grenchen F77 In Blue,” August 12, 2023
- Nivada Grenchen: F77 launch material
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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