Seiko Cal. 4438 - 712

Seiko 4438-712

This Spring Drive model from 1991 features a 46mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-832f5803110c]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
9.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
60m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1991

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seikata-wm-832f5803110c