Seiko Cal. 4427 - 728

Seiko 4427-728

This Solar model from 1997 features a 46mm Titanium case. Powered by the 4427 caliber with 31j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-d91113fd71cf]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
46mm
Case Thickness
9.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Green
Jewels
31j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1997

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