Seiko Cal. 5240 - 561

The Seiko 5240-561 represents an important milestone in Seiko's 1973 lineup. Powered by the 5240 caliber with 34j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-1b9329d51aa4]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1973

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