Seiko Cal. 6368 - 523

The Seiko 6368-523 represents an important milestone in Seiko's 1978 lineup. Powered by the 6368 caliber with 35j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-a921b94a4fb6]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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