There are at least five.
14K yellow goldfilled.
14K white goldfilled.
Stainless steel.
18K solid gold.
14K YGF on leather strap. I mention this as a legitimate variation, as the case lugs are different, and cannot be fitted with a metal bracelet.
There are at least four variations of the glass/logo combination.
Standard glass-frit (fired-on) omega symbol and logo. (White and gold lettering)
Glass-frit omega symbol only (upper-left corner). (Yellow; white version may exist)
Embossed (depressed) symbol and logo. (Yellow lettering only)
Evaporated gold. (Yellow lettering only)
I have seen goldfilled TC1s with plain glass (no symbol or logo); I think it likely that these started life with evaporated-gold that simply wore away completely from daily wear; I have one or two Pulsar P3 crystals of the same type that now have only partially-legible logos. The gold here is actually thinner than gold leaf (probably only a micron or two), so the slightest contact with skin or clothing would produce noticeable abrasion. They are beautiful when new (the lettering takes on the polished surface of the glass, and has a flashy, mirror-like quality to it), but they have no durability whatever.
As for the bracelet...it might be original to the watch...pics would help with a determination.