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The F77 MKII stays true to the spirit of the original model but features a completely redesigned Grade 5 titanium case. It is thinner, better balanced, and more comfortable on the wrist. In addition, the new lug design improves ergonomics and overall wearing comfort. It is a sophisticated evolution designed for everyday use—without compromise.
The F77 MK2 Open Heart Titanium Meteorite model combines a cosmic material with mechanical precision. Each dial is carved from a genuine meteorite and reveals unique Widmanstätten patterns that formed over millions of years in space. The surface around the open window has a cracked appearance and reveals the moving flywheel. The 38-mm case is made exclusively from Grade 5 titanium and combines brushed and polished finishes. The octagonal bezel, secured by eight visible screws, preserves the architectural identity of the F77 model.
Inside is a Swiss SOPROD M100BV automatic movement, which provides a 42-hour power reserve and features an exposed balance wheel at the 6 o’clock position. The dial is protected by a double-domed sapphire crystal, and water resistance up to 100 meters ensures versatility for everyday wear. No two meteorite dials are exactly alike.
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| Brand | Nivada Grenchen |
| Gender | Male |
| Style | Casual |
| Origin | Swiss |
| Guarantee | 5 years |
| Waterproof | 100 m |
| Movement | Automatic |
Power Reserve  |
42 hours |
| Case size | 38 mm |
| Lug-to-lug: |
46,2 mm |
| Case height | 12,2 mm |
| Case shape | Round |
| Case material | Titanium |
| Case color | Silver |
| Crystal material | Sapphire |
| Dial | Analog |
| Dial color | Silver-black |
| Transparent Case |
Yes |
| Open heart |
Yes |
| Threaded lid |
Yes |
| Strap material | Titanium |
| Buckle |
Deployant Clasp |
| Strap Width | 22,8mm |
| Strap color | Silver |
| Quick release system |
no |
| Date | No |
| Functions | Screw-on crown |
| Luminescence |
Ano – points |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 8 EUR on Watch purchase.
Guarantor: Kateřina Žváček
Jiří Štencek
+420 252 252 306
Mo-Tu 9-19
Th 9-19
Fr-Sa 9-16
info@helveti.eu
The product is included in categories
F77 F77 Men's automatic watches Men's dress watches Men's Swiss watch Men's silver watches Men's titanium watch Men's black watches Men's watches novelties Men's watches over 400 EUR Men's mechanical watches Men's watches with sapphire crystal Men's Watches Nivada Grenchen Nivada Grenchen
Nivada Grenchen, založená ve městě Grenchen ve Švýcarsku v roce 1926, je značka, která byla známá svými hodinářskými inovacemi v 50. a 60. letech s jejich legendárními kolekcemi Antarctic & Chronomaster Aviator Sea Diver. Dnes, téměř o století později, restartovali Nivadu Grenchen s cílem přivést zpět k životu dědictví a designy, které tehdy Nivadu vytvářely.
Recenze modelů a další zajímavosti o značce najdete také na blogu nebo v podcastu.
Informace o výrobci: Nivada Grenchen, Asia Fulfillment Center, Montrichard (H.K) Limited, Cable TV Tower No 9 Hoi Shing Road, Hong Kong / contact@nivadagrenchenofficial.com
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1 → We check, clean and set
We will check the functionality, set time, date and clean the watch carefully.
2 → We will carefully pack the watch
So that the watch does not have a chance to be damaged. We use special vacuum pads.
3 → We insure the watch against damage from the carrier
To be sure, we will insure the watch against breakage, so there is nothing to fear.
With each watch, you will receive a gift of your choice from us. Gifts are graduated according to the value of the order.
From €0 = Cleaning cloth, with which you can polish the glass of a watch.
From €100 = Stroke shortener, you can adjust the watch bracelet to your hand.
From €150 = Helveti canvas bag.
From €150 = Credit card knife.
From €170 = Donut watch case.
From €400 = Parker Jotter.
From €600 = knife Mikov 100-NH-2A blue.
From €1000 = Victorinox Waiter knife with 9 functions.
From €1400 = Watchroll for 2pcs.
From €1650 = Helveti leather watch roll.
From €2000 = Leather travel case.
From €2800 = Leatherman REV.
From €4000 = Wooden watch box Helveti.
From €6000 = Watch winder Helveti black.
And on top of that, a 5-year warranty (You can find the terms of the extended warranty here) and free shipping.
You can view the gifts here:
