Which is cheaper, the Orient Star M45 F7 Mechanical Moon Phase or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

At MSRP the Orient Star M45 F7 Mechanical Moon Phase is the cheaper of the two at $1,590, against $2,800 for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a $1,210 gap before any retailer discounting.

Which is bigger, the Orient Star M45 F7 Mechanical Moon Phase or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Orient Star M45 F7 Mechanical Moon Phase wears larger at 41mm versus 39.5mm for the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch — a 1.5mm difference across the dial.

Which has better water resistance, the Orient Star M45 F7 Mechanical Moon Phase or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch is rated to 200m versus 50m for the Orient Star M45 F7 Mechanical Moon Phase.

Which has a longer power reserve, the Orient Star M45 F7 Mechanical Moon Phase or the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

The Orient Star M45 F7 Mechanical Moon Phase carries a 50-hour power reserve against 45 hours on the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch.

What movement does the Orient Star M45 F7 Mechanical Moon Phase run compared to the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Orient Star M45 F7 Mechanical Moon Phase uses the Orient F7M65 and the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch uses the Seiko 6L37.

Orient Star M45 F7 Mechanical Moon PhasevsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

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