Seiko Cal. 5645 - 420

This Quartz model from 1975 features a 35mm Hardlex-Coated Steel case. Powered by the 5645 caliber with 33j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-053d21081a84]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1975

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