Seiko Cal. 6389 - 374

This Hand-Winding model from 1981 features a 40mm Two-Tone case. It features a Burgundy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-d53b524efe72]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1981

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