Seiko Cal. 7157 - 721

The Seiko 7157-721 represents an important milestone in Seiko's 1987 lineup. Powered by the 7157 caliber with 30j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-c719df55cb97]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1987

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