Seiko Cal. 7121 - 747

The Seiko 7121-747 represents an important milestone in Seiko's 1970 lineup. Powered by the 7121 caliber with 35j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-a3873bd42053]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1970

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