Seiko Cal. 6636 - 569

The Seiko 6636-569 represents an important milestone in Seiko's 1986 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-05214d9a2857]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1986

Related Models

• Seiko 6299-570
• Seiko 5680-325
• Seiko 5690-983
• Seiko 3824-659
• Seiko 5684-851
• Seiko 6330-332
• Seiko 4416-277
• Seiko 7018-650
• Seiko 6126-596
• Seiko 5651-977
• Seiko 6352-255
• Seiko 4517-809