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Orient Star M45 F7 Mechanical Moon PhasevsSeiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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M45 F7 Mechanical Moon Phase
Orient StarM45 F7 Mechanical Moon Phase
MSRP $1,590
See the full M45 F7 Mechanical Moon Phase
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition
SeikoProspex SPEEDTIMER Seiko 145th Anniversary Limited Edition
MSRP $2,500
See the full Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition
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Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

14 of 29 specs differ
Diameter
M45 F7 Mechanical Moon Phase41mm
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Power Reserve
M45 F7 Mechanical Moon Phase50h
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Water Resistance
M45 F7 Mechanical Moon Phase50m
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
MSRP
M45 F7 Mechanical Moon Phase$1,590
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500

Full specifications

Case

6 specs
Category
Mechanical
Chronograph
Diameter
41mm
42mm
Thickness
13.8mm
14.6mm
Lug-to-Lug
49mm
49.5mm
Finish
—
—
Water Resistance
50m
100m

Crystal & Dial

4 specs
Crystal Shape
—
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
White
—
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
F7M42
8R48
Power Reserve
50h
45h
Jewels
22
34

Pricing

1 specs
MSRP
$1,590
$2,500
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