Seiko Cal. 6689 - 412

This Spring Drive model from 1985 features a 45mm Titanium case. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-5052fafde55b]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1985

Related Models

• Seiko 5211-575
• Seiko 5649-911
• Seiko 0766-254
• Seiko 6261-516
• Seiko 5647-108
• Seiko 7198-412
• Seiko 6262-601
• Seiko 5280-916
• Seiko 0753-788
• Seiko 6366-579
• Seiko 5613-935
• Seiko 5268-958