Seiko Cal. 6634 - 198

The Seiko 6634-198 represents an important milestone in Seiko's 1998 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-1b4ba952918e]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1998

Related Models

• Seiko 6329-273
• Seiko 5256-725
• Seiko 6216-759
• Seiko 6211-849
• Seiko 6284-419
• Seiko 4555-615
• Seiko 6267-950
• Seiko 0732-920
• Seiko 0771-458
• Seiko 7074-463
• Seiko 6147-307
• Seiko 0749-955