Seiko Cal. 7187 - 172

The Seiko 7187-172 represents an important milestone in Seiko's 1990 lineup. Powered by the 7187 caliber with 27j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-4dee5a8bb7a8]

Also known as: World Timer, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1990

Related Models

• Seiko 3850-964
• Seiko 3860-757
• Seiko 4483-780
• Seiko 3897-361
• Seiko 0773-776
• Seiko 6276-818
• Seiko 6194-958
• Seiko 6238-991
• Seiko 4566-209
• Seiko 4563-495
• Seiko 5274-803
• Seiko 7053-427