Seiko Cal. 4491 - 460

Seiko 4491-460

This Hand-Winding model from 1969 features a 37mm Stainless Steel case. Powered by the 4491 caliber with 27j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-01274be37827]

Also known as: UFO, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
11.0mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Silver
Jewels
27j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1969

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seikata-wm-01274be37827