Seiko Cal. 7140 - 549

The 7140-549 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7140 caliber with 26j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-781baec0e0e9]

Also known as: Sumo, Shogun

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1976

Related Models

• Seiko 6348-299
• Seiko 3852-247
• Seiko 7068-236
• Seiko 5673-569
• Seiko 6236-571
• Seiko 6166-834
• Seiko 3841-890
• Seiko 4562-244
• Seiko 3842-357
• Seiko 5641-546
• Seiko 0789-253
• Seiko 5265-525