Seiko Cal. 7161 - 295

This Spring Drive model from 1987 features a 42mm Two-Tone case. Powered by the 7161 caliber with 21j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-5a23d1bb2042]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1987

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