Seiko Cal. 5644 - 326

Seiko 5644-326

The 5644-326 is a sought-after Solar piece from Seiko's golden era. Powered by the 5644 caliber with 22j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-27f692bacd4e]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
39mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
180m
Dial Color
Burgundy
Jewels
22j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1973

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