Seiko Cal. 6231 - 688

The 6231-688 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-9f3408d24219]

Also known as: Bullhead, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1969

Related Models

• Seiko 0719-788
• Seiko 5281-370
• Seiko 5236-352
• Seiko 4431-553
• Seiko 7151-696
• Seiko 6616-292
• Seiko 4551-425
• Seiko 7112-577
• Seiko 7087-534
• Seiko 0751-433
• Seiko 7093-685
• Seiko 7097-321