Seiko Cal. 6355 - 117

This Hand-Winding model from 1978 features a 37mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-0316aa31ebde]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1978

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