Seiko Cal. 4561 - 187

The Seiko 4561-187 represents an important milestone in Seiko's 1980 lineup. Powered by the 4561 caliber with 26j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-ae414f3fc823]

Also known as: Bullhead, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1980

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