Seiko Cal. 7140 - 688

This Hand-Winding model from 1990 features a 40mm Two-Tone case. Powered by the 7140 caliber with 25j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-9efd1705e078]

Also known as: Panda, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1990

Related Models

• Seiko 7045-509
• Seiko 0780-248
• Seiko 7159-902
• Seiko 6333-710
• Seiko 3888-999
• Seiko 6697-859
• Seiko 6366-711
• Seiko 4454-393
• Seiko 3832-392
• Seiko 4416-349
• Seiko 6616-186
• Seiko 5671-775