Seiko Cal. 5643 - 450

The 5643-450 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5643 caliber with 17j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-f80067f4d1f8]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1985

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