Seiko Cal. 6133 - 905

The Seiko 6133-905 represents an important milestone in Seiko's 1972 lineup. Powered by the 6133 caliber with 23j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-f53ef2834751]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1972

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