Seiko Cal. 5621 - 404

Released in 1971, the Cal. 5621 with design code 404 was part of Seiko's domestic market collection. Powered by the 5621 caliber with 23j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-48e2bb31dbd2]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1971

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