Seiko Cal. 6131 - 352

The Seiko 6131-352 represents an important milestone in Seiko's 1975 lineup. It features a Cream dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-0f3c7f814d8d]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1975

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