Seiko Cal. 5630 - 997

The 5630-997 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5630 caliber with 17j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-36e246d12c8f]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1982

Related Models

• Seiko 6639-430
• Seiko 6264-290
• Seiko 6170-657
• Seiko 6629-950
• Seiko 5617-762
• Seiko 5644-106
• Seiko 7080-951
• Seiko 6277-349
• Seiko 6133-686
• Seiko 5668-269
• Seiko 6231-127
• Seiko 3874-890