Seiko Cal. 4590 - 723

Seiko 4590-723

This Spring Drive model from 1977 features a 44mm Stainless Steel case. Powered by the 4590 caliber with 26j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-c5213b3bf3b7]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
15.3mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
200m
Dial Color
Burgundy
Jewels
26j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1977

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