Seiko Cal. 4491 - 516

Seiko 4491-516

The Seiko 4491-516 represents an important milestone in Seiko's 1973 lineup. Powered by the 4491 caliber with 17j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-915fdd100104]

Also known as: Monster, Sumo

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
36mm
Case Thickness
10.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
White
Jewels
17j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1973

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seikata-wm-915fdd100104