Seiko Cal. 6231 - 990

The 6231-990 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-0f535c83ffe4]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1972

Related Models

• Seiko 7166-885
• Seiko 6175-295
• Seiko 7063-204
• Seiko 7147-109
• Seiko 4581-899
• Seiko 6665-961
• Seiko 4570-609
• Seiko 6150-788
• Seiko 5665-725
• Seiko 3824-293
• Seiko 7177-336
• Seiko 5227-900