Seiko Cal. 5643 - 651

Seiko 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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