Seiko Cal. 6638 - 157

The 6638-157 is a sought-after Kinetic piece from Seiko's golden era. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-594cb3d73729]

Also known as: Sumo, Pogue

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1997

Related Models

• Seiko 0781-677
• Seiko 7163-852
• Seiko 4499-598
• Seiko 7026-212
• Seiko 7166-111
• Seiko 6259-208
• Seiko 3872-317
• Seiko 6325-919
• Seiko 6270-895
• Seiko 5293-240
• Seiko 7190-116
• Seiko 5253-555