How does the compass bezel work?

The inner rotating bezel is turned with the extra crown at 4 o'clock. You align it using the sun and the hour hand to find north, a traditional Alpinist method rather than a magnetic compass.

The stainless steel case measures 39.5mm across, a mid-size that suits most wrists without feeling bulky.

Is the crystal sapphire?

Yes. The dial is covered by scratch-resistant sapphire crystal.

Is it good for swimming?

It is built as a sports watch, but the brown leather strap is the weak point in water. Treat it as an everyday and hiking watch rather than a dive watch.

How does it compare with earlier Alpinists?

It keeps the collection's compass bezel, Arabic numerals and green dial while using the newer 6R55 movement with a longer power reserve than older Alpinist calibers.

Where is the Seiko Prospex SPB507 Green Alpinist cheapest?

At Exquisite Timepieces, for $900.00, as of our latest check.

What do buyers say about the Seiko Prospex SPB507 Green Alpinist?

Rated 5 out of 5 from 1 ratings.

Seiko Prospex SPB507 Green Alpinist

Best price now

$900.00at Exquisite TimepiecesChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Exquisite Timepieces

Seiko Prospex SPB507 Green Alpinist

Best price now

$900.00at Exquisite TimepiecesChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Exquisite Timepieces

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $900.00 at Exquisite Timepieces on Nov 10.

Our take on the Seiko Prospex SPB507 Green Alpinist

The SPB507 is a mechanical field watch from Seiko's Alpinist line, a collection that dates to 1959 and was built for Japanese mountain climbers. It pairs a 39.5mm stainless steel case and brown leather strap with a green dial, gold-tone accents, Arabic numerals, and lume on the hands and markers. Its signature feature is the inner rotating compass bezel, set by a second crown at 4 o'clock, backed by a scratch-resistant sapphire crystal and the in-house Caliber 6R55 automatic with about 72 hours of power reserve. It suits buyers who want a compact, heritage-styled outdoor watch with a real mechanical movement; against general-purpose field watches it trades some water-sport capability for the compass bezel and dressier looks.

Best forOutdoor and hiking enthusiasts who want a compass bezelBuyers of compact mechanical field watchesFans of Seiko's Alpinist heritageEveryday wear that leans dressy-casual

Pros

In-house 6R55 automatic with roughly 72 hours of power reserve
Inner rotating compass bezel operated by a crown at 4 o'clock
Sapphire crystal resists scratches
Arabic numerals and lume keep it readable in low light
39.5mm case wears well on most wrists
Green dial with gold-tone accents stands apart from plain field watches

Cons

Leather strap is less suited to wet or rough outdoor use than a bracelet or rubber strap
Compass bezel is a navigation aid, not a substitute for a map and compass
Date-only display, no day or GMT function
Automatic movement needs regular wear or winding to stay running

Seiko Prospex SPB507 Green Alpinist prices at every store

Exquisite TimepiecesNew
In stockReturn policy
$900.00Checked Nov 10
Visit Exquisite Timepieces

About the Seiko Prospex SPB507 Green Alpinist

The Seiko Prospex Alpinist SPB507 is a mechanical sports watch with a 39.5mm stainless steel case, a green dial with gold-tone accents and a brown leather strap. It continues the Alpinist collection, which began in 1959 with the Laurel Alpinist, a watch developed for Japanese mountain climbers and outdoor enthusiasts. Its design draws on earlier Alpinist models and uses updated mechanical technology.

The dial has Arabic numeral hour markers and a date display at 3 o'clock. The hands and markers are luminous for visibility in low light. A rotating inner compass bezel is operated with an additional crown at 4 o'clock. A sapphire crystal that resists scratches protects the dial.

Inside is Seiko's in-house Caliber 6R55 automatic movement, with approximately 72 hours of power reserve. A transparent caseback shows the movement. The stainless steel case has a super-hard coating for scratch resistance. It also has a screw-down crown and 200-meter water resistance.

Collection: Seiko Prospex Alpinist
Case: Stainless steel, 39.5mm, super-hard coating
Dial: Green with gold-tone accents, Arabic numeral hour markers
Strap: Brown leather
Movement: Seiko in-house Caliber 6R55, automatic
Power reserve: Approximately 72 hours
Crystal: Sapphire, scratch-resistant
Water resistance: 200 meters
Crown: Screw-down, plus additional crown at 4 o'clock for the compass bezel
Bezel: Rotating inner compass bezel
Date: Date display at 3 o'clock
Luminosity: Luminous hands and markers
Caseback: Transparent

Questions and answers

What movement does the SPB507 use?: It runs Seiko's in-house Caliber 6R55 automatic, with about 72 hours of power reserve when fully wound.
How does the compass bezel work?: The inner rotating bezel is turned with the extra crown at 4 o'clock. You align it using the sun and the hour hand to find north, a traditional Alpinist method rather than a magnetic compass.
How big is the case?: The stainless steel case measures 39.5mm across, a mid-size that suits most wrists without feeling bulky.
Is the crystal sapphire?: Yes. The dial is covered by scratch-resistant sapphire crystal.
Is it good for swimming?: It is built as a sports watch, but the brown leather strap is the weak point in water. Treat it as an everyday and hiking watch rather than a dive watch.
How does it compare with earlier Alpinists?: It keeps the collection's compass bezel, Arabic numerals and green dial while using the newer 6R55 movement with a longer power reserve than older Alpinist calibers.
Where is the Seiko Prospex SPB507 Green Alpinist cheapest?: At Exquisite Timepieces, for $900.00, as of our latest check.
What do buyers say about the Seiko Prospex SPB507 Green Alpinist?: Rated 5 out of 5 from 1 ratings.