Seiko Cal. 6638 - 450

This Hand-Winding model from 1991 features a 35mm Hardlex-Coated Steel case. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-7cacb11cd98c]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1991

Related Models

• Seiko 6273-705
• Seiko 6630-663
• Seiko 6177-392
• Seiko 7197-433
• Seiko 4427-284
• Seiko 5638-563
• Seiko 5255-117
• Seiko 7198-336
• Seiko 3819-699
• Seiko 6163-317
• Seiko 0758-717
• Seiko 7066-885