Seiko Cal. 6628 - 639

The 6628-639 is a sought-after Solar piece from Seiko's golden era. Powered by the 6628 caliber with 28j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-b7dd76e8838d]

Also known as: Goldfeather, Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1994

Related Models

• Seiko 5237-262
• Seiko 7121-456
• Seiko 5281-861
• Seiko 0765-109
• Seiko 7198-898
• Seiko 5610-377
• Seiko 7127-465
• Seiko 6125-957
• Seiko 6167-732
• Seiko 6350-414
• Seiko 4492-246
• Seiko 3815-408