Seiko Cal. 6155 - 678

The Seiko 6155-678 represents an important milestone in Seiko's 1971 lineup. Powered by the 6155 caliber with 23j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-fa65246fbd68]

Also known as: UFO, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

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