Sapphire Glass and power reserve sounds good.
Buy what look nice on your wrist and comfortable with your wallet.
The Japanese trio of Seiko, Orient, Citizen usually give tremendous value versus their price and they are usually available locally and you can always try them on your wrist.
Alternatively with your budget, you can take a look at German Brand - Laco (although if you have higher budget, i would have poison you to get Stowa), they have watches with Miyota auto movement (Citizen) and price around 322 to 362 EUR (excluded VAT), which is quite well price for its brand offering. Off course you may have to buy online from Germany and have to bear the shipping + GST, still you should definitely take a look. (I am not sure Malaysia have Laco AD or not)
Alternatively, you can check out one of the online AD of Laco from Singapore (pm me for website)
For example: Laco ROM is only USD410 (shipping included)
Movement: Automatic movement Laco 21, 3 hands
Case: Stainless steel, brushed finish, sapphire glass, case-back with sapphire glass, 5 ATM, case diameter 42 mm, domed crown, 20 mm lug width
Dial: Black mat with Superluminova indexes C3, execution according B-Uhr Baumuster A
Hands: Hour, minute and second black mat with Superluminova inlay C3
Band: High quality stainless steel band with curved endpiece, stainless steel folding buckle with logo "Laco / 1925", 20 mm lug width
Packaging: Black gift box, incl. cardboard box
Made in Germany.
