Side by side
Bremont ionBirdvsSeestern S471 Double Crown Diver
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
ionBird43mm
S471 Double Crown Diver38mm
Power Reserve
ionBird40h
S471 Double Crown Diver35h+h
Water Resistance
ionBird—
S471 Double Crown Diver100m
MSRP
ionBird$5,800
S471 Double Crown Diver$179
Full specifications
Case
7 specsCategory
Pilot
Diver
Diameter
43mm
38mm
Thickness
—
12mm
Lug-to-Lug
—
40.3mm
Lug Width
—
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
—
100m
Crystal & Dial
1 specsDial Color
Regular length (15cm - 19cm wrist size)
Blue
Movement
5 specsCaliber
—
Miyota 8215
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
35h+h
Jewels
25
21
Complications
None
Date
Pricing
1 specsMSRP
$5,800
$179
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