Seiko Cal. 3816 - 851

The 3816-851 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-fd72552fa9b0]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1994

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