Seiko Cal. 0787 - 420

The Seiko 0787-420 represents an important milestone in Seiko's 1970 lineup. Powered by the 0787 caliber with 31j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-fc3ac4154f25]

Also known as: Monster, Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1970

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