Seiko Cal. 3831 - 715

The 3831-715 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3831 caliber with 33j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-69a164cdc155]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1970

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