Seiko Cal. 3870 - 395

This Spring Drive model from 1984 features a 40mm PVD Black case. With its 22mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-6e3fe7347920]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1984

Related Models

• Seiko 6655-908
• Seiko 3866-275
• Seiko 0785-837
• Seiko 5622-463
• Seiko 4551-913
• Seiko 4458-219
• Seiko 6371-799
• Seiko 6245-829
• Seiko 0782-837
• Seiko 4591-724
• Seiko 0718-399
• Seiko 6675-808