MOVEMENTS
the Swiss precision of the Ronda 712.3 quartz movement, lubricated with oil bath.
FUNCTIONS
hours, minutes, screw-down crown.
CASE
41,50 mm diameter in AISI 316L stainless steel with subsequent PVD treatment, completely filled with a special oil that emphasizes the dial, creating the illusion of the absence of glass and an optical effect of a more intense black and higher legibility.
CASEBACK
innovative locking system (Locking ring system) with quick battery replacement. Engraved serial number.
DIAL
black painted metal, hands, numbers and indexes treated with beige superluminova.
CRYSTAL
high quality curved sapphire.
WATER RESISTANCE
50 mt, 5 ATM.
STRAP
ultra-resistant vulcanised rubber, in black color, personalised with the logo of the Maison in relief. Strap equipped with a new system for easy detachment from the watch lugs, no longer secured with screws. Width: 20/18 mm. Strap: ref. 3991/Z. Tongue buckle in steel with subsequent IPB treatment. Buckle: ref.7018/MAT.
| Category | Watches |
| Brand | U-Boat |
