Seiko Cal. 6621 - 793

This Hand-Winding model from 1981 features a 39mm Titanium case. Powered by the 6621 caliber with 31j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-bf5e9d5bb40d]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1981

Related Models

• Seiko 6627-580
• Seiko 6355-445
• Seiko 7093-152
• Seiko 6672-644
• Seiko 4444-204
• Seiko 6255-177
• Seiko 4550-486
• Seiko 4532-777
• Seiko 0744-595
• Seiko 7140-291
• Seiko 5674-751
• Seiko 4555-612