Seiko Cal. 6687 - 974

This Spring Drive model from 1976 features a 37mm Stainless Steel case. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-5789ccc83d8e]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1976

Related Models

• Seiko 4449-715
• Seiko 6156-931
• Seiko 4484-823
• Seiko 4575-232
• Seiko 7095-611
• Seiko 5652-889
• Seiko 0766-936
• Seiko 7111-973
• Seiko 4484-251
• Seiko 6217-251
• Seiko 5212-180
• Seiko 4551-203