Seiko Cal. 4491 - 639

Seiko 4491-639

This Quartz model from 1976 features a 44mm Titanium case. Powered by the 4491 caliber with 27j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-1c3441ecc531]

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
44mm
Case Thickness
9.9mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
27j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1976

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seikata-wm-1c3441ecc531