Seiko Cal. 6389 - 612

The Seiko 6389-612 represents an important milestone in Seiko's 1993 lineup. Powered by the 6389 caliber with 22j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-7d9b0f5bead0]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1993

Related Models

• Seiko 6280-198
• Seiko 3849-831
• Seiko 7047-502
• Seiko 6142-826
• Seiko 6317-934
• Seiko 6629-144
• Seiko 4549-398
• Seiko 5297-945
• Seiko 7156-133
• Seiko 0710-883
• Seiko 7153-499
• Seiko 6639-139