Seiko Cal. 3897 - 654

The Seiko 3897-654 represents an important milestone in Seiko's 1974 lineup. Powered by the 3897 caliber with 31j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-965a49e7dde5]

Also known as: Bellmatic, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1974

Related Models

• Seiko 6377-425
• Seiko 4441-928
• Seiko 7054-730
• Seiko 6679-598
• Seiko 3882-394
• Seiko 5274-536
• Seiko 5665-970
• Seiko 3810-874
• Seiko 7026-584
• Seiko 0724-977
• Seiko 6661-309
• Seiko 6672-190