Seiko Cal. 5691 - 230

The Seiko 5691-230 represents an important milestone in Seiko's 1970 lineup. It features a White dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-3e0aa9f239d5]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1970

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