Seiko Cal. 5678 - 937

Seiko 5678-937

The 5678-937 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-3f779844178f]

Also known as: Tuna, Helmet

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
120m
Dial Color
Black
Jewels
23j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1976

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