Seiko Cal. 3815 - 946

This Kinetic model from 1977 features a 39mm Hardlex-Coated Steel case. Powered by the 3815 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-f090aefa4434]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1977

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