Factory clocks were optional in all 1200 models for either rectangular or round style dashes. It was standard equipment on GL & GX models where the clock was fitted the Console, while other models fitted the clock in the instrument panel to the left of the speedometer.

Operation

1974 B120 Owner's Manual (Page 17 ... 17)

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1974/th_00%20cover.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/owners_manual/1974/th_17.jpg

Comfort and Convenience Features

Turn right to advance hands — to the left to retard hands. Several settings may be needed to obtain completely accurate time keeping.

Overview

Clocks were made by Nilesᴳ, Kanto Seiki☁ (関東精機), Citizen Watchᵂ (シチズン) or JECO☁ (ジェコー).

Square H10 w/o numbers G10 with numbers

Round H20 narrow font with bracket H26 narrow font w/o bracket PB110 H30 wide font long bracket H34 wide font no bracket G16 wide font no brackets, no tabs

Clock/Tachometer Mask

Album 26062

Font

As with the other gauges (Speedometer & Tachometer), later Clock versions use a different font:

Narrow vs Wide font

Album 23448

Rectangle

Kaku Rectangular

http://datsun1200.com/uploads/newbb/174_68fd092f60a72.jpgPost 499082

H10 original clock for STD or DX model

Album 23440

G10 genuine Niles clock for STD or DX model. This one is for a 1976-1978 pickup.

Album 18384

Original

H20 Maru Round - Green Line original style

Album 23439

Narrow Font

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/H20clockB.jpg

Long bottom tab is an identifier

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/H20clockA.jpg

tabs on side are for bolting into floor Console

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/H20clockC.jpg

PB110

H26/H27? PB110 Sunny Excellent - Narrow font. Doesn't have the bottom tab-bracket.

[[1971_PB110_tri-fold_brochure#25963|]]brochure

Facelift

H33 1972 Facelift - wide font, long bracket

Album 25964

* Extra long-bracket for fitting to hooded dash * Wider Font and no green lines * Anti-glare cover (cone-shaped)

H34 CLOCK for console box

??? No picture

Album 23447 Album 23446 Album 8882

JECO

https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/JECO-1.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/JECO-2.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/JECO-3.jpg

Success stamped K.S. Clock

Album 23444

Late Model

G16 1978-1994 style - Wide Font. No green lines.

Album 2024 late ute Citizen clock

Album 669 Album 8520 Album 21253

Post 486725 Post 486725 Post 486725

G16? has no side-brackets for mounting in a console (see discussion)

Upload click to view Upload click to view Upload click to view

Album 25968 Album 25966 Album 25967

2007

B140 Clock Mask 'NISSAN'

Album 14515

Option

Album 2209

Custom Face

Main: Custom Dash Faces

Dash Fitting

The clock bolts into the dash by using the tabs along the face. Unbolt the mask and bolt in the clock.

click

The tabs further back on the body are used for mounting in the floor console.

Console

Clock was fitted to the OPTION large console.

See main article: Console#Clock_Fitting for more details

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/th_lc6.jpg

Wiring

The clock is powered by a constant-Hot wire. If you wire to IGN, it only runs when the key is on :-)

12V Power: L or RB

Ground/Earth: B

Lamp: RB or RG

Album click to view Album click to view Album click to view Album click to view

Clock: Blue or Red/Black wire Power feed 12V (Blue) hanging down from the harness.

Clock: Red/Blue or Red/Green Lamp feed on instrument panel

Clock: Black wire Ground/Earth point on instrument panel (panel frame on rectangular panel)

Service Bulletin

Album click to view

Part Numbers

Rectangle

Kaku メーター　角

27390-H1000 ASS'Y-CLOCK (op.) 3 speed, VDT, B120 -7511 Album click to view 27390-G1000 CLOCK ASSY 7512-7803 Album click to view Album click to view Australia - 'D' Mask for clock Album click to view

JAPAN - 'S' Mask for clock 25005-H1000 MASK-clock 3 speed, VDT Album click to view Album click to view Album click to view Album click to view 25006-H1000 NUT-fix clock & tachometer (3)

Round

JAPAN maru メーター　丸 25005-H1800 MASK-tachometer ['Sunny' for clock delete] 25006-H1000 NUT-fix clock & tachometer (3) 27380-H2000 ASS'Y-CLOCK GL,GX Album click to view Album click to view https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/27380-H2000-1.jpg https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/27380-H2000-2.jpg [https://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/wiki/27380-H2000-3.jpg 27390-G1660 CLOCK ASSY 7804- Album click to view Album click to view 08540-51612 SCREW 08964-10510 NUT 25005-G1660 MASK-CLOCK HOLE 7804-8910 68460-95W00 MASK-CLOCK HOLE 9810- [no writing]

JAPAN 1972 27380-H3300 CLOCK ASS'Y GL, (op.) Std, DX [Long-bracket type for use with 1972 Dash] http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts/th_27380-H3300-1.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts/th_27380-H3300-2.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts/th_27380-H3300.jpg 25017-H3100 CLAMP-front cover (3) 25012-H3300 COVER ASS'Y-front (for clock) GL, (op.) Std, DX [dash blind] has long bracket on top 25012-H3100 COVER ASS'Y-front ['Datsun' for clock delete] fixing clock & tachometer 08964-10510 NUT 08510-51612 SCREW 08915-43510 WASHER-plain 27380-H3400 CLOCK ASS'Y (for console box) GX 08513-41212 SCREW (3) GX 08915-43410 WASHER-plain GX 74990-H2021 MASK-clock CG,GX [console] 08513-41212 SCREW (3) GX 08915-43410 WASHER-plain GX

USA 27380-H2000 ASSY-CLOCK USA 27389-H2300 SPACER FIXING CLOCK TO CONCOLE BOX 25005-H1810 MASK-TACHOMETER "DATSUN" [delete plate for dash]

Japan [[PB110] 25005-H1800 MASK-TACHOMETER ['Sunny'] [for dash] 25005-H3100 MASK ASS'Y-tachometer DX [for dash] 74990-H2600 MASK ASS'Y-clock [for console] 27380-H2701 CLOCK ASS'Y (for console box) GX (Op.) GL 27380-H2600 CLOCK ASS'Y GL, GX, (op.) DX 27380-H3300 CLOCK ASS'Y GL (Op.) DX