Seiko Cal. 6231 - 491

The Seiko 6231-491 represents an important milestone in Seiko's 1996 lineup. Powered by the 6231 caliber with 29j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-eef21d42447f]

Also known as: Sumo, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1996

Related Models

• Seiko 7051-731
• Seiko 6343-385
• Seiko 7141-170
• Seiko 7088-346
• Seiko 6242-122
• Seiko 7144-417
• Seiko 0751-529
• Seiko 6166-183
• Seiko 7154-860
• Seiko 7116-474
• Seiko 7160-317
• Seiko 0737-613