Seiko Cal. 7154 - 106

This Hand-Winding model from 1977 features a 38mm Titanium case. Powered by the 7154 caliber with 31j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-694fefe1352e]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1977

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