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Seiko

Prospex

Name: Seiko Prospex SPB143 Diver Watch
Brand: Seiko
SKU: seiko-prospex-spb143

Ref. SPB143

Diver Tool

Market Prices

MSRP$1,200

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Seiko Prospex is a classic dive-style pick that’s built for water and daily wear. Highlights: automatic (self-winding) movement, 40.5mm case, 200m water resistance, sapphire crystal, stainless steel case, good low-light visibility (lume). Great if you want a tough, go-anywhere watch that doesn’t feel precious. It’s commonly shopped in the $1,000–$2,500 range (prices vary by retailer).

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Diameter

40.5mm

Water Resistance

200m

Movement

automatic

Crystal

sapphire

Fit on Your Wrist

Balanced

Your wrist size

Medium (6.7″)

Optimal proportions for most wrists

See full fit chart

Case: 40.5mm

Lug-to-Lug: 47.6mm

Thickness: 13.2mm

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Accessories & Straps

Compatibility based on lug width: 20mm(?)

Find Straps

Lug Width

Lug width is the distance between the lugs where the strap attaches.

Strap Type

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What will fit my watch?

Lug width is the most important measurement. It's the distance between the lugs (the parts that hold the strap).

Quick release straps have a small lever that makes changing straps easy without tools.

Curved end straps have a slight curve at the ends that matches the watch case for a better fit.

Accessories

Recommended based on your watch

Spring Bars

Replacement pins to attach straps

Spring Bar Tool

Tool for changing straps

Watch Roll / Travel Case

Protect your watch while traveling

Microfiber Cloth

Keep your watch clean and smudge-free

Watch Winder

Keep your automatic running when not worn

Bracelet Sizing Kit

Tools to adjust metal bracelet links

Watch Rinse Kit

Clean saltwater and sweat from your diver

Watch winder note: Not required for most people. Useful if you don't wear your automatic often and want it ready to go.

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $1160 · New & used listings

Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.

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Popular comparisons for this watch

Seiko Prospex SPB143 vs Seiko Prospex SPB155 (Baby Alpinist)Seiko 5 Sports GMT vs Seiko Prospex SPB143 Baltic Aquascaphe Classic vs Seiko Prospex SPB143 Seiko Prospex SPB143 vs Zelos Mako V3 Seiko Prospex SPB143 vs Zelos Swordfish

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View Details

Seiko

Prospex

Ref. SPB151

42.7mm•Automatic•200m

SKX007

Ref. SKX007K1

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Ref. SKX009K1

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Ref. SKX013

33% below MSRP

Prices may change

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