Seiko Cal. 6371 - 491

The 6371-491 is a sought-after Automatic piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-963aa5cd8b9e]

Also known as: Monster, Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1967

Related Models

• Seiko 5687-111
• Seiko 5669-419
• Seiko 6286-738
• Seiko 3837-497
• Seiko 3864-510
• Seiko 5696-946
• Seiko 6137-218
• Seiko 5660-282
• Seiko 7097-178
• Seiko 3887-164
• Seiko 4463-109
• Seiko 7033-368