Seiko Cal. 7154 - 669

This Hand-Winding model from 1977 features a 44mm Titanium case. Powered by the 7154 caliber with 29j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-b4e480fd0160]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1977

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