Seiko Cal. 3861 - 790

The 3861-790 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3861 caliber with 19j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-413bb67ca804]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1969

Related Models

• Seiko 6172-923
• Seiko 7120-903
• Seiko 6370-878
• Seiko 6625-110
• Seiko 5690-644
• Seiko 6156-787
• Seiko 0792-249
• Seiko 3844-543
• Seiko 0774-651
• Seiko 3854-564
• Seiko 4557-748
• Seiko 7052-363