Seiko Cal. 3812 - 623

The Seiko 3812-623 represents an important milestone in Seiko's 1966 lineup. Powered by the 3812 caliber with 31j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-81af59ac18b1]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1966

Related Models

• Seiko 0727-336
• Seiko 4433-408
• Seiko 7199-205
• Seiko 6186-172
• Seiko 7164-196
• Seiko 4587-887
• Seiko 5283-619
• Seiko 6356-833
• Seiko 6621-987
• Seiko 4569-166
• Seiko 3818-332
• Seiko 3823-502