Seiko Cal. 5645 - 421

Seiko 5645-421

The 5645-421 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5645 caliber with 28j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-896a08910041]

Also known as: Golden Tuna, Arnie

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
White
Jewels
28j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1969

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seikata-wm-896a08910041