is this a tritium watch, which glows in the dark, or do you have to put the watch in direct light first before it shines at night?

Seiko does not make any tritium watches. The quality of the "glow paint" they use is good, but can not touch tritium in extended night (lack of light exposure) usage.

Does this watch have a sweep second hand, similar to most mechanical watches?

This watch has a 21,600 vph movement, the 7S36 (although some places list a 7S26c). It beats a bit slower than (and thus the sweep is slightly jerkier than) many of the midprice and higher automatics out there, which typically run at 28,800. It's sweepy, but the increments are more noticeable than on one of those watches.

Is the movement hacking? Does the second hand stop when the crown is pulled out?

The second hand doesn’t stop when the crown is pulled out

If the watch is stopped, how long of normal movement does it take to get it going? If the watch is fully wound, how long will it run standing still?

It doesn't take much movement to get it ticking again after its reset. With a full wind it gets me through the night. However, there's no way to know when it's fully wound and there was a couple times it stopped in the morning before I woke. It made me about a half hour late to work one morning so i don't wear it to bed anymore!

Seiko Mens Snzg15 Seiko 5 Automatic Stainless Steel Watch Nylon

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

⌚ Own the moment—where style meets unstoppable performance.

VERSATILE STYLE - Classic black dial with a comfortable nylon strap blends sporty durability with sleek, casual sophistication.
NIGHT READY LUME - Bright luminous hands and markers ensure you never lose track of time, even in total darkness.
RUGGED YET REFINED - Durable 42mm stainless steel case with scratch-resistant Hardlex crystal for everyday resilience.
READY FOR ADVENTURE - Water resistant up to 100m—perfect for swimming and snorkeling without missing a beat.
EFFORTLESS TIMEKEEPING - Automatic self-wind movement keeps you ticking without battery hassle.

The SEIKO Men's SNZG15 is a 42mm automatic stainless steel watch featuring a durable Hardlex crystal, luminous hands, and a day/date window. Water resistant up to 100 meters, it’s designed for active professionals seeking a reliable, stylish timepiece that transitions effortlessly from work to weekend adventures.

Specifications

ASIN	B006I22GT2
Additional Features	Glow In The Dark
Age Range Description	Adult
Band Color	Silver
Band Material Type	Nylon
Band Width	22 Millimeters
Bands	1
Best Sellers Rank	#3,992,413 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #13,181 in Men's Wrist Watches
Brand Name	SEIKO
Case Diameter	42 Millimeters
Case Material Type	Stainless Steel
Case Thickness	11 Millimeters
Clasp Type	Buckle
Closure Type	Buckle
Crystal	hardlex
Customer Reviews	4.3 out of 5 stars 753 Reviews
Dial Color	Black
Display	Analog
Embellishment Feature	Crystal
Face Style	Round
Global Trade Identification Number	00664689183647
Item Weight	75 Grams
Manufacturer	Seiko
Manufacturer Part Number	SNZG15
Material	Stainless-steel
Model Name	SNZG15
Model Number	SNZG15
Pattern	Solid
Power Source	Automatic
Series Number	15
Shape	Round
Sport Type	Swimming, snorkeling
Strap Type	Nylon Strap
Style Name	Sport
Theme	Sports
UPC	029665158611 664689183647
Warranty Type	Manufacturer
Watch Movement Type	Automatic
Water Resistance Depth	330 Feet
Water Resistance Level	Water Resistant

Reviews

B**C

22.05.2017

G**W

11.11.2012

K**Y

2.09.2016

C**B

11.02.2012

T**E

13.02.2018

A**E

23.01.2015

B**T

14.05.2018

S**.

29.08.2014

E**S

17.09.2021

P**R

17.12.2018

G**O

16.08.2020

M**E

6.12.2019

N**T

20.07.2022

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VT108547

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SEIKO Men's SNZG15 SEIKO 5 Automatic Stainless Steel Watch with Nylon Strap

Description

Specifications

Reviews

Common Questions