Seiko Cal. 6637 - 505

This Hand-Winding model from 1980 features a 40mm Stainless Steel case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2cdc70f0aaae]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

32j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1980

Related Models

• Seiko 7074-455
• Seiko 6665-426
• Seiko 5642-107
• Seiko 4455-556
• Seiko 4489-537
• Seiko 7111-911
• Seiko 6212-741
• Seiko 3895-960
• Seiko 0774-796
• Seiko 6687-817
• Seiko 4543-255
• Seiko 6210-379