Seiko Cal. 0712 - 631

Seiko 0712-631

The 0712-631 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-988f70b33b07]

Also known as: Crown, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
40mm
Case Thickness
8.9mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Silver
Jewels
21j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1990

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seikata-wm-988f70b33b07