Seiko Cal. 6637 - 324

The 6637-324 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f6a88693f8b4]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1991

Related Models

• Seiko 4416-144
• Seiko 5661-155
• Seiko 4541-649
• Seiko 5250-673
• Seiko 6662-689
• Seiko 6355-835
• Seiko 6632-658
• Seiko 5235-521
• Seiko 6119-934
• Seiko 4527-878
• Seiko 6666-647
• Seiko 6321-461