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The watch specialist for over 25 years

Seiko Sea SPB239J1 Prospex Watch

Special edition automatic gents diver with extra strap

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Product description

This special edition dive watch comes with an extra khaki NATO strap that perfectly matches the color of the vintage look lumens on the bezel, hands and indexes. The weave of the strap is called "seichu" and was developed especially for Seiko for flexibility and durability. The design of the watch is based on the very first diving watch developed by Seiko from 1965 that had the same type of strap. The modern 6R35 movement has a power reserve of 70 hours and an accuracy of +25 to -15 seconds per day.


Alternative article number SPB239
Ean 4954628241689
Diameter 40.5 mm
Water Resistance 20 Bar (Dive)
Warranty 2 Year Warranty
Free 1 year extra warranty on Mastersintime.com


Time hours - Analogue hand
Calendar Date - Window
General information
Ean 4954628241689
Brand Seiko
Brand Category Sea
Name Prospex
Year 2021 Spring / Summer
Display Type Analog
Swiss Made No
Water Resistance 20 Bar (Dive)
Dial color Brown
Hand colors (h Glow, Glow, Silver
Case information
Case code 6R35-00P0
Diameter 40.5 mm
Case Thickness 14 mm
Case material Stainless steel
Case Shape Round
Case color Silver
Back case material Stainless steel
Back Case Screwed case back
Material crystal Sapphire
Crown Screw crown
Rotating Bezel Uni-directional
Movement information
Movement part nr 6R35 (See specifications)
Movement Brand Seiko Instruments Inc.
Swiss movement No
Display Type Analog
Mechanism Mechanic Automatic
Power reserve 70
Frequency 21.600
Jewels 24
Hackable Yes
Skeletonized No
Strap information
Strap material Textile
Strap Type NATO-strap
Strap width 20 mm
Lug width (mm) 20 mm
Band width at clasp 18 mm
Band color Silver
Clasp Type Deployment clasp with push buttons
Clasp color Silver
Band sizing by HWG? No
Mount type Pushpins
Straight strap mount Yes
Suitable for wrist size 150 mm - 210 mm
Original strap Strap Seiko L0N3013J0

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Seiko Sea SPB239J1 Prospex Watch