Seiko Cal. 6337 - 675

The 6337-675 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6337 caliber with 27j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-83a92c52e6cc]

Also known as: UFO, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1966

Related Models

• Seiko 6378-625
• Seiko 3860-373
• Seiko 7162-874
• Seiko 6219-953
• Seiko 7096-395
• Seiko 6156-449
• Seiko 4523-363
• Seiko 3826-807
• Seiko 6156-724
• Seiko 5686-564
• Seiko 4415-942
• Seiko 6619-451