Seiko Cal. 3815 - 978

The Seiko 3815-978 represents an important milestone in Seiko's 1997 lineup. Powered by the 3815 caliber with 18j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-539107e04e62]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1997

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