Seiko Cal. 3861 - 292

This Hand-Winding model from 1973 features a 37mm Hardlex-Coated Steel case. Powered by the 3861 caliber with 30j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-0b382ae19dbc]

Also known as: Sumo, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1973

Related Models

• Seiko 3898-262
• Seiko 3847-789
• Seiko 6188-880
• Seiko 6677-597
• Seiko 6321-745
• Seiko 5218-634
• Seiko 3815-216
• Seiko 6150-751
• Seiko 7124-244
• Seiko 5268-586
• Seiko 7171-819
• Seiko 5291-955