Seiko Cal. 6140 - 877

This Spring Drive model from 1977 features a 45mm Titanium case. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-20c4a942b115]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1977

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