Seiko Cal. 6638 - 252

This Solar model from 1978 features a 36mm Stainless Steel case. Powered by the 6638 caliber with 36j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-af110fa2b05e]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1978

Related Models

• Seiko 3899-225
• Seiko 4449-722
• Seiko 5636-464
• Seiko 5644-272
• Seiko 3833-130
• Seiko 6315-454
• Seiko 4514-950
• Seiko 6339-610
• Seiko 7054-587
• Seiko 6256-743
• Seiko 6164-346
• Seiko 0735-212