Seiko Cal. 4542 - 656

This Solar model from 1976 features a 40mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-294f86e05e07]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1976

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