Seiko Cal. 4437 - 103

This Kinetic model from 1965 features a 36mm Hardlex-Coated Steel case. Powered by the 4437 caliber with 18j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-ac1ca153b8b9]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1965

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