Seiko Cal. 7140 - 892

Seiko 7140-892

This Spring Drive model from 1979 features a 36mm Gold-Plated case. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-77e16c8e1225]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
13.5mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
30m
Dial Color
Black
Jewels
28j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1979

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seikata-wm-77e16c8e1225