Seiko Cal. 4440 - 781

Seiko 4440-781

The 4440-781 is a sought-after Solar piece from Seiko's golden era. Powered by the 4440 caliber with 18j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-cd19cb25aa0c]

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
15.4mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1971

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