Seiko Cal. 7153 - 641

This Spring Drive model from 1980 features a 45mm Hardlex-Coated Steel case. Powered by the 7153 caliber with 25j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-c2a4aa91733e]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1980

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