Seiko Cal. 3813 - 765

This Spring Drive model from 1996 features a 37mm Titanium case. Powered by the 3813 caliber with 36j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-e1b888fcd83c]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1996

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