Seiko Cal. 3843 - 565

The Seiko 3843-565 represents an important milestone in Seiko's 1974 lineup. It features a Black dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-c8161b8b8b3d]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1974

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