Seiko Cal. 4445 - 721

Seiko 4445-721

The 4445-721 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4445 caliber with 20j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-d268ffaa6a32]

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
11.2mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
110m
Dial Color
Silver
Jewels
20j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1966

Related Models

seikata-wm-d268ffaa6a32