Seiko Cal. 4420 - 286

This Spring Drive model from 1969 features a 39mm Gold-Plated case. Powered by the 4420 caliber with 18j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-e676c8c1ee20]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1969

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