Seiko Cal. 6638 - 187

This Kinetic model from 1998 features a 36mm PVD Black case. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-eccbe5ccfc3d]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1998

Related Models

• Seiko 0798-675
• Seiko 3886-677
• Seiko 5662-892
• Seiko 6321-765
• Seiko 6350-988
• Seiko 0797-584
• Seiko 3855-855
• Seiko 6388-349
• Seiko 5694-455
• Seiko 0765-144
• Seiko 4465-678
• Seiko 6160-403