Seiko Cal. 3823 - 677

The Seiko 3823-677 represents an important milestone in Seiko's 1975 lineup. It features a Black dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-1e362a5d120a]

Also known as: Monster, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1975

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