Side by side
Grand Seiko STGF387vsLongines PRIMALUNA
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
19 of 29 specs differDiameter
STGF38726mm
PRIMALUNA30mm
Power Reserve
STGF38740h
PRIMALUNA40h
Water Resistance
STGF387100m
PRIMALUNA30m
MSRP
STGF387$4,200
PRIMALUNA$1,700
Full specifications
Case
7 specsDiameter
26mm
30mm
Thickness
8.1mm
8mm
Lug-to-Lug
32.9mm
37mm
Lug Width
13mm
7mm
Finish
Brushed and polished
—
Water Resistance
100m
30m
Caseback
Solid
—
Crystal & Dial
5 specsCrystal Shape
Flat
—
AR Coating
Yes
Underside
Dial Color
Black
Mother of Pearl
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova
Movement
6 specsCaliber
4J51
L152.3
Beat Rate
28,800 vph
25,200 vph
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date
Pricing
1 specsMSRP
$4,200
$1,700
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