Seiko Cal. 5688 - 198

The Seiko 5688-198 represents an important milestone in Seiko's 1977 lineup. Powered by the 5688 caliber with 28j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-8ce2cdf48b7a]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1977

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