Seiko Cal. 4561 - 236

The Seiko 4561-236 represents an important milestone in Seiko's 1977 lineup. Powered by the 4561 caliber with 24j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-201fddeaad56]

Also known as: Monster, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1977

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