Seiko Cal. 6693 - 426

The Seiko 6693-426 represents an important milestone in Seiko's 1981 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-c432379c15e1]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1981

Related Models

• Seiko 5693-898
• Seiko 5618-209
• Seiko 6172-321
• Seiko 6691-329
• Seiko 4521-899
• Seiko 4422-767
• Seiko 6358-143
• Seiko 3854-627
• Seiko 7183-582
• Seiko 6264-700
• Seiko 7075-914
• Seiko 5299-473