Seiko Cal. 5643 - 545

This Automatic model from 1965 features a 45mm Hardlex-Coated Steel case. Powered by the 5643 caliber with 26j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-bab10bd352b9]

Also known as: Tuna, Goldfeather

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1965

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