Seiko Cal. 3837 - 221

The Seiko 3837-221 represents an important milestone in Seiko's 1977 lineup. It features a Silver dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-704e714bd660]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1977

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