Seiko Cal. 7140 - 538

Seiko 7140-538

The 7140-538 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-1f476e97d629]

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
44mm
Case Thickness
15.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Black
Jewels
29j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1991

Related Models

seikata-wm-1f476e97d629