Seiko Cal. 4491 - 499

Seiko 4491-499

This Spring Drive model from 1972 features a 34mm Stainless Steel case. Powered by the 4491 caliber with 21j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-feb175f4b5dc]

Also known as: Tuna, Arnie

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
11.4mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Burgundy
Jewels
21j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1972

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