Seiko Cal. 6616 - 400

The Seiko 6616-400 represents an important milestone in Seiko's 1972 lineup. Powered by the 6616 caliber with 36j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-ee560e32dbb1]

Also known as: Rally, Goldfeather

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1972

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