Seiko Cal. 6698 - 431

Seiko 6698-431

The Seiko 6698-431 represents an important milestone in Seiko's 1976 lineup. Powered by the 6698 caliber with 34j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-c28deb4619cc]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
41mm
Case Thickness
12.5mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
200m
Dial Color
Green
Jewels
34j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1976

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seikata-wm-c28deb4619cc