Seiko Cal. 4416 - 438

Seiko 4416-438

This Spring Drive model from 1977 features a 36mm Two-Tone case. Powered by the 4416 caliber with 18j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-39266eda51e6]

Also known as: Sumo, Silverwave

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
36mm
Case Thickness
8.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Cream
Jewels
18j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1977

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seikata-wm-39266eda51e6