Seiko Cal. 4448 - 240

Seiko 4448-240

The 4448-240 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4448 caliber with 31j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-ae7c358b5ff9]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
12.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Cream
Jewels
31j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1966

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