Seiko Cal. 7183 - 242

The Seiko 7183-242 represents an important milestone in Seiko's 1977 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-61f33196d9af]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

26j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1977

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