Seiko Cal. 5618 - 831

The Seiko 5618-831 represents an important milestone in Seiko's 1998 lineup. Powered by the 5618 caliber with 32j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-37c14f5dd0be]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1998

Related Models

• Seiko 6150-777
• Seiko 5215-880
• Seiko 0741-654
• Seiko 5612-443
• Seiko 3860-115
• Seiko 4518-270
• Seiko 4542-133
• Seiko 7176-616
• Seiko 5648-184
• Seiko 6675-889
• Seiko 0745-844
• Seiko 3880-902