Seiko Cal. 4441 - 723

Seiko 4441-723

The 4441-723 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4441 caliber with 33j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-9c0d24376207]

Also known as: UFO, Navigator

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
13.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
33j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1991

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seikata-wm-9c0d24376207