Seiko Cal. 3821 - 940

The Seiko 3821-940 represents an important milestone in Seiko's 1973 lineup. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-a484ce78669b]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1973

Related Models

• Seiko 7089-900
• Seiko 4599-548
• Seiko 6155-467
• Seiko 0724-674
• Seiko 7175-211
• Seiko 5614-889
• Seiko 3891-369
• Seiko 5633-262
• Seiko 4492-900
• Seiko 6265-764
• Seiko 4526-942
• Seiko 6136-709