Seiko Cal. 5666 - 900

The 5666-900 is a sought-after Kinetic piece from Seiko's golden era. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-03dbd9ca98fe]

Also known as: Bullhead, World Timer

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1993

Related Models

• Seiko 0769-987
• Seiko 6331-519
• Seiko 0769-227
• Seiko 4596-627
• Seiko 3869-644
• Seiko 6266-319
• Seiko 6126-622
• Seiko 7095-336
• Seiko 3864-403
• Seiko 7175-209
• Seiko 3831-373
• Seiko 4487-378