Seiko Cal. 4440 - 325

Seiko 4440-325

The 4440-325 is a sought-after Solar piece from Seiko's golden era. Powered by the 4440 caliber with 36j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-3ee81a95384f]

Also known as: Helmet

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
8.2mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Black
Jewels
36j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1983

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