Seiko Cal. 6698 - 251

The Seiko 6698-251 represents an important milestone in Seiko's 1972 lineup. Powered by the 6698 caliber with 25j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-d82a73aa7b4d]

Also known as: Helmet, Bellmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1972

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