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Seiko Prospex Land Tortoise automatic diver's watch, blue dial, stainless steel case, polyester strap, 42.00 mm

Seiko

Seiko Prospex Land Tortoise SRPG15J1 Automatic Diver's Watch 200m Blue Dial 42.00mm

SKU CH-FRCD-FAK74

Automatic diver's watch with a 42.00 mm stainless steel case, 200 m water resistance, sapphire crystal and blue dial

  • Watch movementAutomatic
  • Product shapeRound
  • Watch face colorBlue
  • Dial markingsIndex
  • Display typeAnalog
  • Date displayDate
  • Automatic Caliber 4R35 with 23 jewels powers reliable timekeeping
  • Sapphire crystal protects the blue dial from scratches
  • 200 m water resistance suits serious diving
  • Stainless steel 42.00 mm case withstands heavy daily wear
  • Polyester strap with buckle clasp secures the watch comfortably

Seiko Prospex Land Tortoise Automatic Diver

The Seiko Prospex Land Tortoise SRPG15J1 is a new automatic diver's watch built for men who need a capable mechanical tool watch. A stainless steel case houses the 4R35 caliber with 23 jewels, protected by a sapphire crystal and a screw-down crown. It delivers 200m water resistance and a rotating bezel for timing dives.

Strap choice and thickness define the fit

The integrated polyester strap and buckle clasp suit wearers who prefer a lightweight, quick-drying band over metal bracelets or rubber. Buyers who want a bracelet included, a slimmer case profile, or a different strap material should look elsewhere.

4R35 automatic caliber with 23 jewels

The 4R35 movement provides three-hand analog timekeeping with a date window driven by 23 jewels. It winds automatically through wrist motion and can be hand-wound via the screw-down crown. This caliber is the sole specification that determines whether the watch matches your movement preference.

How it compares

Measured against everything we stock in Analog & Digital Wristwatches, at today’s prices. Recalculated every night.

Price $432.99
Pricier than about 90% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameSeiko
Design styleDiver's
Watch face colorBlue
Item conditionNew
Display
Display typeAnalog
Size & build
Main materialStainless Steel
Product shapeRound
Strap materialPolyester
Closure typeBuckle Clasp
Bezel typeRotating Bezel
Case constructionScrew Down Crown
Housing materialStainless Steel
Case size42 mm
Watch glassSapphire
Environment & compliance
Water resistance200m
More details
Watch movementAutomatic
Dial markingsIndex
Date displayDate
Suitable forMale

Questions about this item

How do I set the time and date on the 4R35 movement, and which crown position do people often miss?

Pull the screw-down crown to the first click for date, second click for time; many forget to push and screw it back fully to keep 200 m water resistance.

What part of the 23-jewel automatic movement will need service first, and roughly when?

The mainspring lubrication inside caliber 4R35 typically requires a watchmaker's clean and re-oil every three to five years.

At what depth does the 200 m rating stop protecting the sapphire crystal and screw-down crown during continuous diving?

The 200 m limit is the tested static pressure ceiling; beyond that the case seals and crystal retention are no longer guaranteed.

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