Seiko Cal. 6316 - 539

This Automatic model from 1971 features a 37mm Two-Tone case. It features a White dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-c48d0225cd1e]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1971

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