Seiko Cal. 6631 - 226

This Spring Drive model from 1980 features a 46mm Titanium case. Powered by the 6631 caliber with 26j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-405158d7cdc7]

Also known as: Crown, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1980

Related Models

• Seiko 6116-793
• Seiko 6219-767
• Seiko 4514-501
• Seiko 6351-133
• Seiko 6169-463
• Seiko 0799-194
• Seiko 3859-255
• Seiko 7096-709
• Seiko 3885-248
• Seiko 4526-541
• Seiko 0714-244
• Seiko 6682-888