Seiko Cal. 5643 - 971

Seiko 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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seikata-wm-80677f20606b