Seiko Cal. 6221 - 710

The 6221-710 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6221 caliber with 25j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-4eb3fbe69d84]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1965

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