Seiko Cal. 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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