Delma 41701.670.6.034 Shell Star Decompression Timer Automatic Watch

The Delma Shell Star Decompression Timer merges heritage diving aesthetics with advanced technical capability. This automatic timepiece draws from DELMA's iconic Shell Star lineage, featuring signature design elements including a spade seconds hand, railway track indices, and contrasting orange and white markers. The standout decompression timer function-rooted in Swiss diving research from the 1950s-60s-provides essential safety information for divers, with depth readings at 12 o'clock and clear decompression stop indicators via the dial's white ring markings. The unidirectional rotating bezel enables precise dive timing, whilst the helium escape valve and robust stainless steel construction deliver 500m water resistance. Optimised for depths up to 700 metres above sea level, this instrument combines professional-grade functionality with refined watchmaking, completed by a solid steel bracelet and exhibition caseback revealing the automatic movement within.
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New boxed stock with full retail boxes & paperwork


CASE DIMENSIONS
Diameter 44 mm
Height 13.8 mm
Lug width 24 mm
Lug-to-lug size 51 mm

Case Material
316L stainless steel with helium escape valve
Case Finish
Brushed and polished
Case Back
Screw-down stainless steel with 4 screws and mineral crystal
Bezel
Black anodized aluminum, unidirectional diver bezel

Crystal
Sapphire crystal with AR coating
Crown
Stainless steel screw-down
Dial
Black dial with decompression table, applied indexes with SLN C5

Hands
Hour, minute and central seconds with SLN C5
Bracelet
Stainless-steel three link bracelet

Clasp
Stainless-steel deployant clasp with pushers

Water-resistance
50 ATM / 500 m / 1650 ft
Weight
150 g