Seiko Cal. 6646 - 145

This Spring Drive model from 1990 features a 35mm PVD Black case. It features a Cream dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-4102608a26c5]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1990

Related Models

• Seiko 6359-329
• Seiko 7033-754
• Seiko 7155-896
• Seiko 6242-776
• Seiko 6256-901
• Seiko 6274-519
• Seiko 5617-317
• Seiko 5269-386
• Seiko 6233-283
• Seiko 4425-288
• Seiko 7163-419
• Seiko 5664-333