Side by side
Seiko Baby AlpinistvsUndone X SIMPLE UNION: AITOHEIWA AUTOMATIC
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Baby Alpinist38mm
X SIMPLE UNION: AITOHEIWA AUTOMATIC40mm
Power Reserve
Baby Alpinist70h
X SIMPLE UNION: AITOHEIWA AUTOMATIC—
Water Resistance
Baby Alpinist200m
X SIMPLE UNION: AITOHEIWA AUTOMATIC—
MSRP
Baby Alpinist$725
X SIMPLE UNION: AITOHEIWA AUTOMATIC$499
Full specifications
Case
7 specsCategory
Field
—
Diameter
38mm
40mm
Thickness
12.9mm
0mm
Lug-to-Lug
46mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
Bronze
Water Resistance
200m
—
Crystal & Dial
5 specsCrystal
Sapphire
—
Crystal Shape
Curved
—
AR Coating
Anti-reflective coating on inner surface
—
Dial Color
—
—
Lume
LumiBrite on hands and index(es)
None
Movement
3 specsCaliber
Seiko 6R35
—
Power Reserve
70h
—
Jewels
24
0
Pricing
1 specsMSRP
$725
$499
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