Seiko Cal. 6640 - 911

This Automatic model from 1983 features a 37mm Gold-Plated case. It features a White dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-34bfb1a1be5f]

Also known as: Sea Horse, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1983

Related Models

• Seiko 0716-762
• Seiko 0735-834
• Seiko 3888-232
• Seiko 6257-613
• Seiko 4432-230
• Seiko 4465-838
• Seiko 6690-376
• Seiko 4549-302
• Seiko 6163-909
• Seiko 3885-863
• Seiko 5295-939
• Seiko 5638-425