Seiko Cal. 7156 - 990

The Seiko 7156-990 represents an important milestone in Seiko's 1993 lineup. Powered by the 7156 caliber with 36j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-616f20ab9499]

Also known as: World Timer, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1993

Related Models

• Seiko 7071-112
• Seiko 4580-839
• Seiko 0791-653
• Seiko 3831-411
• Seiko 5677-493
• Seiko 6127-834
• Seiko 7142-497
• Seiko 7085-365
• Seiko 7148-178
• Seiko 4589-984
• Seiko 6653-943
• Seiko 7089-524