Seiko Cal. 6638 - 352

The 6638-352 is a sought-after Solar piece from Seiko's golden era. Powered by the 6638 caliber with 26j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-971128642ea8]

Also known as: Pogue, Silverwave

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1976

Related Models

• Seiko 5281-999
• Seiko 7028-417
• Seiko 6129-908
• Seiko 6137-205
• Seiko 4512-771
• Seiko 6695-939
• Seiko 7064-594
• Seiko 0749-537
• Seiko 6629-285
• Seiko 6258-769
• Seiko 4587-477
• Seiko 4422-287