Seiko Cal. 3815 - 227

Seiko 3815-227

The 3815-227 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3815 caliber with 19j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-cb3e3f326f50]

Also known as: Sumo, Rally

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
15.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Silver
Jewels
19j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1981

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