Seiko Cal. 3840 - 913

The Seiko 3840-913 represents an important milestone in Seiko's 1969 lineup. It features a Navy dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-d7e7d89c16ed]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1969

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