Seiko Cal. 3815 - 285

This Kinetic model from 1978 features a 43mm Hardlex-Coated Steel case. Powered by the 3815 caliber with 21j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-f0257f5d2f3a]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1978

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