Seiko Cal. 6131 - 536

This Spring Drive model from 1968 features a 37mm PVD Black case. It features a Black dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-0ea7e83d5e68]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1968

Related Models

• Seiko 0733-209
• Seiko 7023-327
• Seiko 0750-204
• Seiko 4496-185
• Seiko 6165-292
• Seiko 6327-149
• Seiko 6287-385
• Seiko 6341-479
• Seiko 3861-872
• Seiko 6630-928
• Seiko 7145-138
• Seiko 0741-429