Seiko Cal. 6371 - 255

Seiko 6371-255

The 6371-255 is a sought-after Hand-Winding piece from Seiko's golden era. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e0fac44d2aac]

Also known as: Sumo, Bullhead

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
39mm
Case Thickness
13.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
180m
Dial Color
Silver
Jewels
31j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1979

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