Seiko Cal. 6131 - 781

The Seiko 6131-781 represents an important milestone in Seiko's 1965 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-b9d51151f3ba]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1965

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