Seiko Cal. 4491 - 721

Seiko 4491-721

This Solar model from 1970 features a 36mm Two-Tone case. Powered by the 4491 caliber with 28j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-5a454fad1d72]

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
36mm
Case Thickness
8.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Champagne
Jewels
28j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1970

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