Seiko Cal. 6363 - 721

The Seiko 6363-721 represents an important milestone in Seiko's 1968 lineup. It features a Silver dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-bbdbfa230232]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1968

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