Seiko Cal. 6172 - 991

The Seiko 6172-991 represents an important milestone in Seiko's 1969 lineup. Powered by the 6172 caliber with 26j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-0ab5d7117f86]

Also known as: Tuna, Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1969

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