Seiko Cal. 6171 - 789

The Seiko 6171-789 represents an important milestone in Seiko's 1966 lineup. Powered by the 6171 caliber with 29j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-050abfc52bcb]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1966

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