Seiko Cal. 6154 - 687

The Seiko 6154-687 represents an important milestone in Seiko's 1983 lineup. Powered by the 6154 caliber with 35j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-f07efe0ceaeb]

Also known as: UFO, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1983

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