U-Boat Sommerso Ceramic Bordeaux (9521)

U-BOAT’s identity for dive lovers and beyond!

Black bezel and a two-tone dial (burgundy and black). Vulcanized rubber strap, water-resistant up to 30 ATM.

MOVEMENT

Sellita SW 200 swiss automatic mechanical, personalized to U-BOAT specifications. Frequency: 28,800 vibrations per hour, 4 Hz. Power reserve: 41 hours. 26 jewels. Skeletonized rotor.

FUNCTIONS

date, hours, minutes, seconds, 24h indicator, graduated unidirectional bezel with references in white superluminova on black ceramic insert. Screw down crown.

CASE

stainless steel AISI 316L, satin hand finish, distinguishing crown on the left side, with a patented protective device. Serial number plate fixed on the left side of the case. Diameter 46 mm.

BACK

in steel sealed with seven external screws.

DIAL

three superimposed dials, two-tone bordeaux and black. Visible ruby. Numbers in brushed metal, numbers and indices in white superluminova. Hands in painted metal with white superluminova treatment. 24h indicator’s hand in red. Red reference on minutes hands.

CRYSTAL

high quality sapphire crystal with anti-reflective treatment. Lent on the date window.

WATER RESISTANCE

300 mt, 30 ATM.

STRAP

ultra-resistant vulcanised rubber, in black color, personalised with the logo of the Maison in relief. Stainless steel tongue buckle. Width: 22/20 mm. Strap: ref. 8351/Z. Buckle: ref. 5466/SCREW