Seiko Cal. 3888 - 615

This Spring Drive model from 1966 features a 41mm Titanium case. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-8bdfbd0e63bc]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1966

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