Seiko Cal. 6357 - 744

This Spring Drive model from 1972 features a 41mm Two-Tone case. It features a Navy dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-683d08e8c111]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1972

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