Seiko Cal. 7136 - 630

The Seiko 7136-630 represents an important milestone in Seiko's 1971 lineup. Powered by the 7136 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-9ca501ad5320]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1971

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