Seiko Cal. 6138 - 578

The Seiko 6138-578 represents an important milestone in Seiko's 1994 lineup. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-76c8fc77f38b]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1994

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