Seiko Cal. 7140 - 678

Seiko 7140-678

The 7140-678 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-dd7b08afa687]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
12.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Burgundy
Jewels
35j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1984

Related Models

seikata-wm-dd7b08afa687