Seiko Cal. 4457 - 935

This Hand-Winding model from 1970 features a 43mm Hardlex-Coated Steel case. It features a Navy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-a1f3b53795af]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1970

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