Seiko Cal. 6659 - 638

This Solar model from 1991 features a 43mm Stainless Steel case. Powered by the 6659 caliber with 21j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-81f04c685e3b]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1991

Related Models

• Seiko 5219-454
• Seiko 3866-606
• Seiko 7061-987
• Seiko 0742-495
• Seiko 7190-174
• Seiko 4550-306
• Seiko 0767-665
• Seiko 6341-172
• Seiko 3889-732
• Seiko 5261-413
• Seiko 7087-275
• Seiko 3884-208