Seiko Cal. 6397 - 888

Seiko 6397-888

The 6397-888 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6397 caliber with 24j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-e41aa9ab38f2]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
15.3mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Champagne
Jewels
24j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1987

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