Seiko Cal. 6378 - 937

This Hand-Winding model from 1975 features a 46mm Gold-Plated case. It features a Navy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-bbea9b4a51e8]

Also known as: Crown, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1975

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