Seiko Cal. 4577 - 726

Seiko 4577-726

This Spring Drive model from 1969 features a 38mm Titanium case. Powered by the 4577 caliber with 20j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-d9f5757a84aa]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
38mm
Case Thickness
12.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Black
Jewels
20j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1969

Related Models

seikata-wm-d9f5757a84aa