Seiko Cal. 3861 - 720

The Seiko 3861-720 represents an important milestone in Seiko's 1986 lineup. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-987155ce99e7]

Also known as: Sumo, Pogue

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1986

Related Models

• Seiko 7189-709
• Seiko 6188-160
• Seiko 6275-588
• Seiko 6692-525
• Seiko 6253-445
• Seiko 3862-359
• Seiko 4431-437
• Seiko 7149-995
• Seiko 4532-613
• Seiko 5215-283
• Seiko 6344-642
• Seiko 6651-180