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Home/Browse/Seiko/Baby Alpinist
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Seiko Baby Alpinist
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Seiko · Prospex Land

Seiko Baby Alpinist

Field

$725Stock unknown

15 matched eBay listings

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Case

Diameter
38mm
Material
Stainless Steel
Water resistance
200m

Crystal & dial

Crystal
Sapphire
Shape
Curved
AR coating
Anti-reflective coating on inner surface
Lume
LumiBrite on hands and index(es)

Movement

Caliber
Seiko 6R35
Type
Automatic
Power reserve
70h
Jewels
24

Seiko

Seiko's upgraded automatic caliber offering a substantial 70-hour power reserve, nearly double the 4R35 it replaces in higher-end Presage and Prospex models. The extended reserve is achieved through a longer mainspring while maintaining the same 21,600 vph beat rate. Accuracy is tightened to -15/+25 seconds per day compared to the 4R35's wider tolerance. Represents Seiko's push to compete with Swiss movements offering 80-hour reserves.

Design language

Case shape
round
Dial style
textured
Bezel
fixed
Bracelet
lug-attached
Hands
dauphine

AI-detected from the product image

Prospex Land collection · 6 watches

Alpinist
Alpinist39.5mm
Prospex Alpinist Mechanical GMT
Prospex Alpinist Mechanical GMT39.5mm
Prospex Land Mechanical
Prospex Land Mechanical39.5mm
Prospex Land Mechanical GMT
Prospex Land Mechanical GMT39.5mm
Prospex Land Seiko Boutique exclusive model
Prospex Land Seiko Boutique exclusive model38mm

2 colorways

Size
Alternatives

Market

Retail$725

The forum market

See what sellers are asking.

Active listings1Across watch forums
Closed · 30d4Asking-price history

Browse forum listings and their asking prices. Market+ adds the weekly trend.

Retail stock & market context

Seiko on the secondhand market

+10.3%

2026 so far · +5.7% to +17.0% · 91 matched watches

In line with the index

Field watches as a group: +9.6% · 69 matched watches

Year-by-year readings →

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Boldr Marine

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Boldr The Vogelkop

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Dryden Heartlander Solar

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View all alternatives

Community

“

Owners widely praise the Seiko Baby Alpinist for its attractive design, legible dial, and comfortable 38mm cushion case that wears smaller than its dimensions suggest. Reviewers and owners alike highlight the watch's excellent value, particularly when on sale, and appreciate its finishing, including outstanding brushing and a gorgeous reflective dial with applied indices. Some reviewers note the internal rotating bezel action is good for the price, though not as refined as higher-end models, and one owner would prefer a numbered bezel. A drawback mentioned by one owner is the lack of AR coating, and accuracy is reported by one source as approximately -10 seconds per day. The stock strap is frequently described as stiff and uncomfortable, though owners find success with break-in or replacement. Overall, owners and reviewers rate the Seiko Baby Alpinist highly for its comfortable wearability and attractive finishing at a fair price.

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On video

On real wrists · 19

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Compared in

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Comparison · 3 watches

Cross-shops

Popular comparisons

The matchups people make with the Seiko Baby Alpinist most: open one to see it side by side.

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