Seiko Cal. 3858 - 821

This Hand-Winding model from 1966 features a 45mm Two-Tone case. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-b33285fb656d]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1966

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