Seiko Cal. 6391 - 618

This Automatic model from 1985 features a 46mm Gold-Plated case. Powered by the 6391 caliber with 17j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-4c53ae33e955]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1985

Related Models

• Seiko 6196-856
• Seiko 6298-279
• Seiko 5269-469
• Seiko 5627-199
• Seiko 6257-865
• Seiko 4580-418
• Seiko 5638-400
• Seiko 0783-548
• Seiko 6685-443
• Seiko 5210-746
• Seiko 4557-880
• Seiko 6261-327