Seiko Cal. 3815 - 131

The Seiko 3815-131 represents an important milestone in Seiko's 1994 lineup. Powered by the 3815 caliber with 19j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-7517f0595dc0]

Also known as: Monster, Rally

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1994

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