Seiko Cal. 4445 - 743

Seiko 4445-743

The 4445-743 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4445 caliber with 23j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-100da3e1b32c]

Also known as: Sumo, Navigator

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
10.3mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Burgundy
Jewels
23j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1988

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seikata-wm-100da3e1b32c