Seiko Cal. 7157 - 222

This Spring Drive model from 1990 features a 46mm Stainless Steel case. Powered by the 7157 caliber with 28j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-369452601c1d]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1990

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