Seiko Cal. 7188 - 978

Released in 1975, the Cal. 7188 with design code 978 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-34afecf76bd4]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1975

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