Seiko Cal. 6312 - 370

This Spring Drive model from 1970 features a 38mm PVD Black case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-e2f46562f2b9]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1970

Related Models

• Seiko 6137-962
• Seiko 0735-221
• Seiko 6189-886
• Seiko 6279-839
• Seiko 0731-936
• Seiko 3881-586
• Seiko 5614-617
• Seiko 6167-323
• Seiko 5654-347
• Seiko 4574-137
• Seiko 6684-321
• Seiko 6386-112