Seiko Cal. 6638 - 779

Seiko 6638-779

This Quartz model from 1970 features a 46mm Gold-Plated case. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-7e2e5e0ae8c0]

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
8.8mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Black
Jewels
33j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1970

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