Seiko Cal. 6378 - 205

This Hand-Winding model from 1976 features a 44mm Two-Tone case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-2d0a3cb7677a]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1976

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