Seiko Cal. 4443 - 623

Seiko 4443-623

The 4443-623 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4443 caliber with 29j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-da1edfacaec0]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
10.3mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
70m
Dial Color
Burgundy
Jewels
29j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1994

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