Seiko Cal. 4437 - 742

Seiko 4437-742

The Seiko 4437-742 represents an important milestone in Seiko's 1985 lineup. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-4675ed52734e]

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
40mm
Case Thickness
13.9mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
White
Jewels
23j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1985

Related Models

seikata-wm-4675ed52734e