Seiko Cal. 6631 - 827

This Solar model from 1981 features a 43mm Titanium case. Powered by the 6631 caliber with 28j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-2e59dd965cb4]

Also known as: Turtle

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1981

Related Models

• Seiko 6283-394
• Seiko 7173-373
• Seiko 7070-569
• Seiko 7037-438
• Seiko 6392-284
• Seiko 7152-518
• Seiko 6619-471
• Seiko 5273-148
• Seiko 6665-342
• Seiko 0767-352
• Seiko 7147-673
• Seiko 5687-255