Seiko Cal. 4437 - 541

Seiko 4437-541

The Seiko 4437-541 represents an important milestone in Seiko's 1970 lineup. With its 19mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-a10d4d348edf]

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
43mm
Case Thickness
11.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Black
Jewels
19j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1970

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