Seiko Cal. 6131 - 661

This Spring Drive model from 1969 features a 38mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-92dba19e31bb]

Also known as: Samurai, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1969

Related Models

• Seiko 6272-632
• Seiko 5293-976
• Seiko 6265-116
• Seiko 6634-337
• Seiko 3810-548
• Seiko 7148-683
• Seiko 3890-365
• Seiko 6110-475
• Seiko 0731-580
• Seiko 6187-856
• Seiko 5265-950
• Seiko 7079-207