Seiko Cal. 3870 - 261

The Seiko 3870-261 represents an important milestone in Seiko's 1995 lineup. Powered by the 3870 caliber with 31j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-a88f1944bba8]

Also known as: Monster, Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1995

Related Models

• Seiko 5234-801
• Seiko 5662-171
• Seiko 0783-683
• Seiko 4537-143
• Seiko 5237-908
• Seiko 5230-426
• Seiko 0788-534
• Seiko 6363-430
• Seiko 3868-429
• Seiko 7061-530
• Seiko 7097-229
• Seiko 0733-471