Seiko Cal. 5266 - 638

The 5266-638 is a sought-after Solar piece from Seiko's golden era. Powered by the 5266 caliber with 28j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-29d0ad1024ef]

Also known as: Helmet, Silverwave

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1974

Related Models

• Seiko 5245-990
• Seiko 0726-221
• Seiko 4441-420
• Seiko 5229-246
• Seiko 5261-175
• Seiko 4580-729
• Seiko 7124-109
• Seiko 0719-902
• Seiko 4448-460
• Seiko 6346-362
• Seiko 5695-749
• Seiko 7178-669