Seiko Cal. 7187 - 412

The Seiko 7187-412 represents an important milestone in Seiko's 1965 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-4f1b59a9f85a]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1965

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