Seiko Cal. 5643 - 651

The 5643-651 is a sought-after Solar piece from Seiko's golden era. Powered by the 5643 caliber with 36j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-55a5050f5be7]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1988

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