Seiko Cal. 3865 - 597

This Spring Drive model from 1973 features a 37mm Hardlex-Coated Steel case. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-5815847f7a1f]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1973

Related Models

• Seiko 7021-635
• Seiko 5237-752
• Seiko 4489-626
• Seiko 6119-703
• Seiko 6237-735
• Seiko 7013-551
• Seiko 7031-882
• Seiko 6282-665
• Seiko 5660-316
• Seiko 0724-818
• Seiko 6331-902
• Seiko 0799-215