Seiko Cal. 5634 - 542

The Seiko 5634-542 represents an important milestone in Seiko's 1989 lineup. Powered by the 5634 caliber with 17j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-912fabc0b803]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1989

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