Seiko Cal. 3815 - 715

This Spring Drive model from 1967 features a 39mm PVD Black case. Powered by the 3815 caliber with 19j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-719838b4b6dc]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1967

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