Seiko Cal. 6638 - 134

This Automatic model from 1999 features a 35mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-9b14ce260112]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1999

Related Models

• Seiko 7083-803
• Seiko 6151-468
• Seiko 7033-316
• Seiko 3882-396
• Seiko 6276-467
• Seiko 3874-429
• Seiko 4588-967
• Seiko 7095-930
• Seiko 7064-343
• Seiko 5235-400
• Seiko 3860-780
• Seiko 7060-861