Seiko Cal. 6377 - 518

This Hand-Winding model from 1999 features a 37mm Stainless Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ee91b9ce53de]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1999

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