Delma 41501.670.6.034 Shell Star Decompression Timer Automatic Watch

This DELMA Shell Star Decompression Timer merges heritage diving aesthetics with advanced technical capability. Drawing from Swiss decompression research spanning the 1950s-60s, the watch delivers precise depth monitoring and decompression stop calculations-a rarely integrated feature in modern timepieces. The unidirectional bezel enables accurate dive timing, whilst the dial's vertical scale at 12 o'clock correlates directly to depth readings. Rated for 500m water resistance with helium escape valve protection, it performs reliably in extreme conditions. Signature design elements-spade seconds hand, railway track indices, and contrasting orange-white markers-echo DELMA's iconic Shell Star lineage. The automatic movement, visible through the exhibition caseback, pairs with a robust black rubber strap to create an instrument-grade dive watch that balances technical sophistication with timeless style.
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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
Black genuine rubber strap
Clasp
Stainless-steel buckle
Water-resistance
50 ATM / 500 m / 1650 ft
Weight
150 g