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Seiko Mod Datejust 31, Oystersteel, Bright blue Dial, M278240-0018

$349.00

This Seiko Mod Datejust 31 in stainless steel features a bright blue dial and a Jubilee bracelet.

Automatic Movement Self-winding mechanical caliber — no battery to replace.
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SKU: SKMm278240-0018 Categories: , , Tags: , , Brand:

YourWatchStore Collection

Mechanical watches for every day.

Automatic dive, field, dress, and chronograph watches, inspected before they ship.

Description

About this watch

Introducing the Seiko Mod Datejust 31 "Blue" Watch, designed for everyday luxury. This watch boasts a Japanese-engineered NH35 Automatic Mechanical Movement, a robust and reliable automatic movement that can take a beating.

Case Measurements

Case diameter 31mm
Thickness 10.8mm
Lug-to-lug 42mm
Lug width 19mm
Adjustable wrist size 5.31-7.87 inches
Weight 95g (3.4 oz)

Key Features

  • Case Material: Polished 316L stainless steel, custom-made case with screw-down crown.
  • Bracelet/Strap: Polished 316L stainless steel, five-piece link, custom-made, fitted with a concealed folding clasp with secure push-button release.
  • Dial: Premium, custom-made bright blue dial, with luminescent, hand-applied indices.
  • Hands: Luminous stainless steel hands.
  • Water resistance: Individually tested to 3 bar / 30m of water resistance using stationary pressure testing. Watch is safe for light splashes, rain, and hand washing, but not for swimming. Water damage is not covered under our 1-year warranty.
  • Exhibition case-back
  • Scratch-resistant sapphire crystal with date magnifier lens
  • Bezel: Domed Stainless steel
  • Functions: Hours, minutes, seconds, date display, hacking seconds for precise time-setting.
  • Japanese-engineered NH35 Automatic Mechanical Movement

Manufactured with precision and care using premium Japanese-engineered components.

Additional information

Brand

Seiko Mod

Gender

female

AgeGroup

Adult

Color

Blue

Collection

Datejust

Model

Datejust 31

Reference

SKM278240

Case Material

Polished 316L stainless steel

Case Diameter

31 mm

Size

Small

Dial

Bright blue

Dial Gems

Not gem-set

Bracelet

Jubilee

Bracelet Material

Polished 316L stainless steel

Clasp

Concealed folding clasp with secure push-button release

Bezel

Domed Stainless steel

Crystal

Scratch-resistant sapphire crystal with date magnifier lens

Winding Crown

Screw-down crown for secure water resistance

WATER-RESISTANCE

3 bar / 30m (rated for light splashes and rain only, not for swimming)

Case Construction

Monobloc case construction with screw-down case back and crown

Calibre

Manufacture Seiko, NH35

Movement

Automatic, mechanical, self-winding (Japanese NH35)

Functions

Hours, minutes, seconds, date display, hacking seconds for precise time-setting.

Power Reserve

Approximately 41 hours

Precision

-20/+40 sec/day (standard NH35 tolerance)

Oscillator

Standard Seiko balance wheel with Diashock-type shock protection

Winding

Bidirectional self-winding rotor with manual winding and hacking seconds

Warranty

1-year limited warranty against manufacturing defects

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