Seiko Cal. 5643 - 822

Seiko 5643-822

The 5643-822 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5643 caliber with 31j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-e78e88b0488a]

Also known as: Turtle, Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
13.5mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1977

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