Seiko Cal. 6377 - 427

The 6377-427 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-be91da7df375]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1975

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