Seiko Cal. 6231 - 618

This Hand-Winding model from 1998 features a 39mm Stainless Steel case. Powered by the 6231 caliber with 31j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-7e4f61255c69]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1998

Related Models

• Seiko 0760-491
• Seiko 5618-583
• Seiko 5611-236
• Seiko 5269-689
• Seiko 6662-198
• Seiko 6214-989
• Seiko 6334-530
• Seiko 3821-986
• Seiko 3823-625
• Seiko 6233-930
• Seiko 6681-641
• Seiko 4523-821