Seiko Cal. 3840 - 836

The Seiko 3840-836 represents an important milestone in Seiko's 1978 lineup. It features a White dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-aaa456fb6e63]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1978

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