Seiko Cal. 4448 - 321

Seiko 4448-321

The 4448-321 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4448 caliber with 18j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-168cf5ccb781]

Also known as: Monster, Emperor

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
11.9mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
190m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1981

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