Seiko Cal. 7138 - 768

The Seiko 7138-768 represents an important milestone in Seiko's 1977 lineup. It features a Navy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-c5988c6d4128]

Also known as: Bullhead, Silverwave

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1977

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