Seiko Cal. 3815 - 993

The Seiko 3815-993 represents an important milestone in Seiko's 1988 lineup. Powered by the 3815 caliber with 17j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-4ebb0ba79cd1]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1988

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