Seiko Cal. 6699 - 366

This Automatic model from 1968 features a 40mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-779e39ee42cf]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1968

Related Models

• Seiko 4468-805
• Seiko 4523-584
• Seiko 7032-152
• Seiko 0769-761
• Seiko 7039-327
• Seiko 5266-491
• Seiko 7159-718
• Seiko 6319-501
• Seiko 3813-938
• Seiko 6134-684
• Seiko 7095-861
• Seiko 7149-325