Seiko Cal. 0770 - 378

The Seiko 0770-378 represents an important milestone in Seiko's 1993 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-f19bc99abb72]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

22j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1993

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