Seiko Cal. 5669 - 840

The 5669-840 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-f6079d9a51ed]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1986

Related Models

• Seiko 5663-450
• Seiko 7085-156
• Seiko 6655-236
• Seiko 6266-345
• Seiko 4496-859
• Seiko 7019-131
• Seiko 3856-907
• Seiko 6346-119
• Seiko 6148-631
• Seiko 6186-367
• Seiko 3829-570
• Seiko 7099-818