Seiko Cal. 7171 - 731

Seiko 7171-731

The 7171-731 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-845a2771dfda]

Also known as: Navigator, Sea Horse

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
8.3mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Burgundy
Jewels
32j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1972

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