Seiko Cal. 6621 - 237

Released in 1974, the Cal. 6621 with design code 237 was part of Seiko's domestic market collection. Powered by the 6621 caliber with 28j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-ed786fe09bbb]

Also known as: Rally, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1974

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