Sternkreuz MD series domed mineral glass watch crystal with bevelled wall edge. Available in 11 sizes from Ø27.0mm to Ø32.0mm in 0.5mm steps. These are quality aftermarket replacement crystals suited to vintage and modern watches requiring a round domed mineral glass profile.
Specifications
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Brand: Sternkreuz (Germany)
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Series: MD — Domed, Bevelled Wall
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Thickness: 2.00mm
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Profile: Domed top, bevelled wall edge
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Material: Mineral glass
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Available diameters: Ø27.0 / 27.5 / 28.0 / 28.5 / 29.0 / 29.5 / 30.0 / 30.5 / 31.0 / 31.5 / 32.0mm
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Fit type: Press-fit (verify internal case diameter before ordering)
Compatibility
These are generic aftermarket crystals sized by diameter — not made for a single brand. They are widely used as replacements across many vintage and modern watches. Confirmed compatible models from collector community sources include:
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Seiko King Seiko 5626-7000, 5626-7111 — MD 300 (Ø30.0mm) used as aftermarket replacement
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Seiko 6139 Chronograph series — including 6139-6000, 6139-6001, 6139-6002, 6139-6005, 6139-6007, 6139-6009, 6139-6010, 6139-6011, 6139-6012, 6139-6013, 6139-6015, 6139-6017, 6139-6019, 6139-6030
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Seiko 7C43-6010 — MD 28mm variant noted as a good fit
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Seiko LM Special — MD 285 (Ø28.5mm) reported as fitting well
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General replacement for vintage Seiko, Citizen, Orient and many European dress watches with matching internal diameter
Always measure your watch's existing crystal or case seat diameter before selecting a size. A tolerance of ±0.1–0.3mm is common — some fitting adjustment may be needed.
Notes
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Sternkreuz MD crystals feature a frosted bevel edge; original crystals on some models may have a polished bevel — this is a known difference
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These are aftermarket mineral glass, not Seiko Hardlex or OEM crystals
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Not the MDH (straight wall) variant — the MD series has a bevelled wall suited to a narrower diameter range
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Sold individually — please select your required diameter
Dispatched from the UK. Combined postage available on multiple items.
