Seiko Cal. 5624 - 347

The Seiko 5624-347 represents an important milestone in Seiko's 1970 lineup. Powered by the 5624 caliber with 24j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-0e7d9f9b743d]

Also known as: Tuna, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1970

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