Seiko Cal. 6674 - 537

The Seiko 6674-537 represents an important milestone in Seiko's 1991 lineup. Powered by the 6674 caliber with 24j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-7fd6cba92086]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1991

Related Models

• Seiko 3881-366
• Seiko 4419-681
• Seiko 4566-937
• Seiko 4588-531
• Seiko 6282-265
• Seiko 5692-128
• Seiko 7191-400
• Seiko 6396-580
• Seiko 4496-285
• Seiko 6329-125
• Seiko 4429-816
• Seiko 5616-283