Seiko Cal. 6630 - 937

The Seiko 6630-937 represents an important milestone in Seiko's 1985 lineup. Powered by the 6630 caliber with 20j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-6386bcfffe67]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1985

Related Models

• Seiko 4469-667
• Seiko 4415-299
• Seiko 7073-899
• Seiko 5688-712
• Seiko 4417-776
• Seiko 6618-380
• Seiko 7012-921
• Seiko 5243-972
• Seiko 7167-656
• Seiko 6286-518
• Seiko 5229-931
• Seiko 7024-443