Seiko Cal. 6621 - 601

The 6621-601 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6621 caliber with 23j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-794b06362d98]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1986

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