Seiko Cal. 4584 - 764

Seiko 4584-764

This Hand-Winding model from 1965 features a 40mm Stainless Steel case. Powered by the 4584 caliber with 31j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-c43f7bd9aa1d]

Also known as: Sumo, Bullhead

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
9.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Black
Jewels
31j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1965

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