Seiko Cal. 5671 - 323

The Seiko 5671-323 represents an important milestone in Seiko's 1968 lineup. Powered by the 5671 caliber with 21j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-780e81a101b6]

Also known as: Pogue, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1968

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