Seiko Cal. 5643 - 971

The 5643-971 is a sought-after Solar piece from Seiko's golden era. Powered by the 5643 caliber with 19j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-80677f20606b]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1991

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