Seiko Cal. 4443 - 722

Seiko 4443-722

The 4443-722 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4443 caliber with 31j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-22c8dc892b1c]

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
42mm
Case Thickness
14.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1968

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seikata-wm-22c8dc892b1c