Seiko Cal. 6621 - 476

The 6621-476 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-377b6c5f1f44]

Also known as: Sumo, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1991

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