Seiko Cal. 3844 - 164

This Spring Drive model from 1988 features a 40mm Titanium case. Powered by the 3844 caliber with 32j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-0acf96829461]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1988

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