Seiko Cal. 5644 - 346

The Seiko 5644-346 represents an important milestone in Seiko's 1975 lineup. Powered by the 5644 caliber with 25j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-909a7299b1f0]

Also known as: Crown, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1975

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