Side by side

Loresum LS04vsSeiko Alpinist

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

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LS04
LoresumLS04
Alpinist
SeikoAlpinist
MSRP $750
Buy from Loresum ↗
Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
LS0439.5mm
Alpinist39.5mm
Power Reserve
LS0440h
Alpinist70h
Water Resistance
LS0450m
Alpinist200m
MSRP
LS04—
Alpinist$750

Full specifications

Case

4 specs
Category
—
Field
Thickness
9mm
13.2mm
Lug-to-Lug
46.5mm
46.4mm
Water Resistance
50m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blue Aventurine
Black
Lume
Super-LumiNova® BGW9
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9015
6R35
Power Reserve
40h
70h
Jewels
25
24

Pricing

1 specs
MSRP
—
$750
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