Seiko Cal. 0713 - 731

Seiko 0713-731

The 0713-731 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-0df73c8bbe57]

Also known as: Monster, Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Champagne
Jewels
20j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1972

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