Seiko Cal. 4427 - 637

Seiko 4427-637

This Solar model from 1994 features a 38mm Titanium case. Powered by the 4427 caliber with 22j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-484d2c81af2c]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
38mm
Case Thickness
9.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
70m
Dial Color
Burgundy
Jewels
22j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1994

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