Seiko Cal. 3840 - 358

This Hand-Winding model from 1973 features a 45mm Two-Tone case. Powered by the 3840 caliber with 20j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-bfde23d74520]

Also known as: Panda, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1973

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