Seiko Cal. 4498 - 668

Seiko 4498-668

The Seiko 4498-668 represents an important milestone in Seiko's 1968 lineup. Powered by the 4498 caliber with 28j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-92b7f8a939df]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
10.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
190m
Dial Color
Black
Jewels
28j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1968

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