Seiko Cal. 5645 - 446

Seiko 5645-446

The 5645-446 is a sought-after Solar piece from Seiko's golden era. Powered by the 5645 caliber with 35j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-2b91a8f0c091]

Also known as: Helmet

Specifications

Movement
Solar
Case Material
Titanium
Case Width
46mm
Case Thickness
9.6mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
60m
Dial Color
Cream
Jewels
35j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1990

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