Seiko Cal. 5630 - 321

The Seiko 5630-321 represents an important milestone in Seiko's 1971 lineup. Powered by the 5630 caliber with 17j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-466350a1756d]

Also known as: Pogue, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1971

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