Seiko Cal. 5255 - 561

The Seiko 5255-561 represents an important milestone in Seiko's 1974 lineup. Powered by the 5255 caliber with 22j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-43d168a23ab2]

Also known as: Monster, Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1974

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