Seiko Cal. 4540 - 388

Seiko 4540-388

This Hand-Winding model from 1989 features a 40mm PVD Black case. With its 22mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-849c453a73ae]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
40mm
Case Thickness
13.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Black
Jewels
36j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1989

Related Models

seikata-wm-849c453a73ae