Seiko Cal. 3840 - 729

The Seiko 3840-729 represents an important milestone in Seiko's 1974 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-db7b1a67778b]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1974

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