Seiko Cal. 6637 - 202

This Quartz model from 1991 features a 38mm Two-Tone case. It features a Black dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-cf82db450d65]

Also known as: Samurai, Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1991

Related Models

• Seiko 6116-512
• Seiko 5675-743
• Seiko 6330-355
• Seiko 7178-847
• Seiko 0719-163
• Seiko 6189-245
• Seiko 5648-436
• Seiko 4538-674
• Seiko 6251-450
• Seiko 6199-524
• Seiko 6261-405
• Seiko 0734-969