Seiko Cal. 6399 - 237

Seiko 6399-237

The 6399-237 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6399 caliber with 20j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-5445360d4c56]

Also known as: Sumo, Silverwave

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
37mm
Case Thickness
12.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
190m
Dial Color
White
Jewels
20j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1970

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seikata-wm-5445360d4c56