Seiko Cal. 5645 - 512

Seiko 5645-512

The 5645-512 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5645 caliber with 21j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-6031f3a0976e]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
12.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Cream
Jewels
21j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1986

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seikata-wm-6031f3a0976e