Seiko Cal. 6686 - 445

This Quartz model from 1985 features a 37mm Hardlex-Coated Steel case. It features a Burgundy dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-e2990e8aecfd]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1985

Related Models

• Seiko 4528-790
• Seiko 5289-383
• Seiko 6614-369
• Seiko 5287-683
• Seiko 3882-351
• Seiko 3849-676
• Seiko 7064-569
• Seiko 4422-863
• Seiko 6673-565
• Seiko 4476-259
• Seiko 7076-953
• Seiko 5663-242