Seiko Cal. 6688 - 228

Seiko 6688-228

This Solar model from 1970 features a 46mm PVD Black case. Powered by the 6688 caliber with 17j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-337e1a764f4d]

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
46mm
Case Thickness
15.2mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Burgundy
Jewels
17j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1970

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