Side by side
Beaucroft Watches PenfoldvsIslander Islander Thunderbolt Pilot Watch with Black Mother of Pearl Dial #ISL-322
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Penfold39.5mm
Islander Thunderbolt Pilot Watch with Black Mother of Pearl Dial #ISL-32240mm
Power Reserve
Penfold42h
Islander Thunderbolt Pilot Watch with Black Mother of Pearl Dial #ISL-322—
Water Resistance
Penfold200m
Islander Thunderbolt Pilot Watch with Black Mother of Pearl Dial #ISL-322100m
MSRP
Penfold—
Islander Thunderbolt Pilot Watch with Black Mother of Pearl Dial #ISL-322$429
Full specifications
Case
7 specsCategory
—
Pilot
Diameter
39.5mm
40mm
Thickness
11.6mm
12.5mm
Lug-to-Lug
46.5mm
0mm
Finish
Brushed and polished
—
Water Resistance
200m
100m
Caseback
Solid
Screw-down
Crystal & Dial
3 specsAR Coating
Inner
Underside
Dial Color
—
—
Indices
Applied
—
Movement
4 specsCaliber
Miyota 9039
Seiko NH38
Beat Rate
28,800 vph
0 vph
Power Reserve
42h
0h
Jewels
25
0
Pricing
1 specsMSRP
—
$429
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