Seiko Cal. 6638 - 806

The 6638-806 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6638 caliber with 30j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-fb909edbc6fc]

Also known as: Goldfeather

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1991

Related Models

• Seiko 4470-677
• Seiko 5636-993
• Seiko 0733-472
• Seiko 6221-138
• Seiko 4411-461
• Seiko 5649-563
• Seiko 6657-835
• Seiko 6296-443
• Seiko 6330-249
• Seiko 5627-876
• Seiko 6645-435
• Seiko 7144-640