Seiko Cal. 6381 - 486

This Hand-Winding model from 1970 features a 39mm Hardlex-Coated Steel case. It features a Navy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-6915e6206b29]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1970

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