Seiko Cal. 6645 - 431

The Seiko 6645-431 represents an important milestone in Seiko's 1993 lineup. It features a White dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-4ed20b824cbd]

Also known as: Navigator, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1993

Related Models

• Seiko 3834-327
• Seiko 6374-290
• Seiko 7052-118
• Seiko 6176-711
• Seiko 6116-466
• Seiko 3822-976
• Seiko 4599-325
• Seiko 4414-166
• Seiko 6117-722
• Seiko 6233-825
• Seiko 3824-610
• Seiko 6270-519