Seiko Cal. 7057 - 677

This Spring Drive model from 1972 features a 37mm Hardlex-Coated Steel case. It features a White dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-bfa115ba357b]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1972

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